Loading page content
Preparing content…
SOC 19-4092
Collect and analyse physical evidence in criminal cases, record the scene and examination process and write reports, and some staff give evidence in court within their field of expertise. The division between scene and laboratory positions and independent examination and sign-off authority must be verified against the locality and the institution.
Model impact index for three equally weighted representative core tasks; not a measured share of working time or a job-loss probability. floor((0+25+75)/3+0.5)=33; fermatmind-ai-impact-v1; 2026-10-18.
Taking on the judgement | verify three types of task against the target position: scene collection, sealing and handover; laboratory methods, quality control and result records; report review, result interpretation and possible court appearances. Institutions may divide the work, and no single technician can be required to carry all the steps in the same case. First complete the fictional record and quality control exercise on this page and observe accuracy, anomaly identification and explanation habits; real scenes, laboratory operations and assessment take place only under lawful teaching or institutional authorisation, and neither the exercise nor an interest questionnaire constitutes a recruitment or competence conclusion.
Caution signals | O*NET also shows: the consequences of error are extremely serious (47%), exposed to contaminants every day (36%), wearing routine protective or safety equipment every day (36%), outdoors exposed to all weather every day (43%), working in enclosed or awkward positions once a week or more (45%), exposed to distracting noise once a week or more (37%), dealing with unpleasant or angry or discourteous people once a week or more (31%), public speaking every day (31%), exposed to disease or infection once a month or more (47%). Examination errors or a break in the chain of evidence can directly affect cases and the people involved, and the scene and laboratory involve biological and chemical and sharps and equipment risks. If you find it hard to bear strict procedures and consequential responsibility, or are uncomfortable about biological and chemical and hazardous material exposure, treat these as real costs that need careful weighing.
Occupational definition | according to the US O*NET-SOC19-4092.00, collect, identify, classify and analyse physical evidence related to criminal investigations; examine weapons, fibres, hair, tissue and so on, explain their significance to the investigation, and possibly specialise in areas such as ballistics, fingerprints, handwriting or biochemistry and testify in court. Scene and laboratory positions may be divided, and no individual can be required to cover all exhibits. The occupational classification itself does not confer investigation, medical diagnosis or legal adjudication authority, nor does it wholly prohibit examining personnel with the corresponding qualifications from signing opinions; the specific scope of examination, review, sign-off and testimony depends on local systems and institutional authorisation.
Career direction comparison
Preface | the following comparison is laid out in four columns: 'occupational direction — core work and outputs — key differences — what it is a better choice for'. Law enforcement and examination scenes are often linked by process, but linkage does not equal substitutability; when choosing across directions, the procedures, qualifications and evidence requirements must be relearned.
| Career direction | Core work and output | Key differences | Best-fit choice |
|---|---|---|---|
| This occupation: forensic science technicians | Output is technical conclusions usable for investigation and justice: scene examination and handover records, examination method and result records, reports and charts and photographs, and the method explanation given in court testimony. | Centred on the collection, examination and reporting of case physical evidence: collect, package and preserve at the scene to procedure, examine fibres and hair and biological samples or firearms and ballistics or fingerprints and footprints in the laboratory using standard methods, write reports and charts, and give evidence in court as an expert witness on methods and conclusions when necessary. |
AI impact on this career
Insufficient evidence: the sources this round provided no verifiable generative AI exposure rating, adoption rate or replacement year for SOC19-4092, and this page neither rates it as medium nor guarantees it will not be replaced in the short term. As an editorial inference from the tasks, record organisation, search and report drafts may be assisted; general digitalisation, automatic comparison and generative AI must be distinguished. Method validation, original data review, the chain of evidence and sign-off responsibility are still borne per institutional rules. AI Impact Score 33% is an editorial estimate. Model impact index for three equally weighted representative core tasks; not a measured share of working time or a job-loss probability. floor((0+25+75)/3+0.5)=33; fermatmind-ai-impact-v1; 2026-10-18.The three tasks, ratings and sources are listed in the FermatMind method source record on this page.
FermatMind AI Impact Score estimation method v1
FermatMind / 费马测试 · 2026-10-18
Editorial ratings use the existing occupational responsibilities and AI task analysis on this page. They are not adoption rates, measured effects, job-disappearance or personal-unemployment probabilities, or official scores from Stanford or another external institution. No measured time weights or future robot deployment are assumed.
Chinese mainland salary reference
Classification boundary | US SOC19-4092/O*NET19-4092.00 is a criminal investigation physical evidence technical occupation; NBS industry wages are not an occupational classification or entry system, and this page has not established a one-to-one Chinese occupational code mapping. Judicial administration and public security examiner registration must be verified separately under the corresponding systems and qualifications are not obtained from an industry or occupational title.
Occupational definition | according to the US O*NET-SOC19-4092.00, collect, identify, classify and analyse physical evidence related to criminal investigations; examine weapons, fibres, hair, tissue and so on, explain their significance to the investigation, and possibly specialise in areas such as ballistics, fingerprints, handwriting or biochemistry and testify in court. Scene and laboratory positions may be divided, and no individual can be required to cover all exhibits. The occupational classification itself does not confer investigation, medical diagnosis or legal adjudication authority, nor does it wholly prohibit examining personnel with the corresponding qualifications from signing opinions; the specific scope of examination, review, sign-off and testimony depends on local systems and institutional authorisation.
US pay reference
Direct answer | May 2025 national annual wage P50 is 72,060 US dollars and the hourly wage P50 is 34.65 US dollars; P10 is 48,250, P25 is 57,830, P75 is 94,520 and P90 is 117,250 US dollars / year. Percentiles are wage distribution positions and cannot correspond to newcomers, senior staff or a specific examination direction; inclusions and hours are judged under the OEWS statistical definition.
| Wage statistical position | Annual wage reference | Conversion boundary | How to understand this position |
|---|---|---|---|
| Lowest 10% | 10th percentile 48,250 US dollars / year (2025, BLS OEWS) | Official annual wage, not personal monthly income | P10 is the bottom decile of the wage distribution for the whole occupation, not the standard pay of newcomers or junior grades. |
| Median (50%) | Median annual wage 72,060 US dollars (2025, BLS OEWS; median hourly wage 34.65 US dollars) | Official annual wage, not personal take-home pay |
Career fit guide
Judgement suggestion | assessments cannot replace position qualification checks and institutional assessment. First use the fictional records and quality control tasks on this page to observe accuracy, anomaly identification and record habits, and then learn about practice conditions under lawful teaching or institutional authorisation; one exercise cannot prove the ability to handle real cases.
You may be better suited to： Fit signals: willing to trace the source and result of a piece of physical evidence to procedure and able to accept review and court explanations.
These situations require caution： Caution signals: difficulty bearing strict procedures and consequential responsibility, or clear discomfort with biological and chemical and contaminant exposure and field conditions and court questioning.
Do an entry exercise： Exploration suggestion | first observe procedure and review habits in fictional record tasks; real scenes and experiments are learned about only under lawful teaching or institutional authorisation and with protection in place. One experience cannot judge long-term fit or prove the ability to handle real evidence.
Work pressure, risks and occupational boundaries
Direct answer | the core risk of this occupation is not 'whether you can examine', but four types of failure with serious consequences: chain of evidence failure (incomplete collection and sealing and handover records leading to doubt about evidentiary weight), examination and conclusion failure (improper methods or misjudged results or unidentified interference leading to wrong conclusions), safety and exposure failure (biological and chemical and contaminant and sharps and equipment exposure), and information and testimony failure (leakage of case and party information, and court statements inconsistent with the records or methods).
Evidence scope | this page is based on the O*NET 19-4092.00 tasks and work context (face-to-face discussion every day 86%, email every day 82%, an extremely important impact of decisions on colleagues and unit results 73%, precision or accuracy extremely important 67%, in an enclosed vehicle or enclosed equipment every day 60%, outdoor exposure every day 43%, exposed to contaminants every day 36%, wearing protective equipment every day 36%, working in enclosed or awkward positions at least once a week but not every day 45%, noise exposure at least once a week but not every day 37%, exposed to disease or infection at least once a month but not every week 47%, the consequences of error extremely serious 47%, more than 40 hours of work 48%); the risk situations and control suggestions are summarised by the editor from the tasks; the wage and employment figures serve only as background information and are not used for risk assessment. The percentages are respondent distributions, not individual working hours, event rates or prevalence.
Entry, qualifications and career development
US preparation path | natural science or forensic science courses → apply for scene or laboratory positions per the notice → supervision and on-the-job training → obtain approval for independent cases per state, institutional or accreditation requirements → build specialism. This common path is not a statutory list in all jurisdictions; Chinese qualifications and assistant positions are verified separately. Quality, training and management directions are editorial planning, not a guaranteed promotion.
Occupational prospects and related occupation transitions
US reference | 2025 projection base period 20,100 people, growth of 13.3% over 2025—2035, and 2,800 average annual openings; the May 2025 OEWS wage median is 72,060 US dollars. Exact Chinese wages and employment for this occupation were not obtained in the sources read this round, and only verified industry background is listed; not obtaining them must not be written as the statistical system not existing.
United States · SOC 19-4092（Forensic Science Technicians）
Employment about 20,100 people (2025 base period); growth much faster than average (about 13%); about 2,800 average annual openings
Employment size and growth rate and job openings
The growth category is much faster than average; openings include replacement needs (separations, transfers, retirement), so the number of openings is higher than the net change in size.
According to the US O*NET-SOC19-4092.00, collect, identify, classify and analyse physical evidence related to criminal investigations; examine weapons, fibres, hair, tissue and so on, explain their significance to the investigation, and possibly specialise in areas such as ballistics, fingerprints, handwriting or biochemistry and testify in court. Scene and laboratory positions may be divided, and no individual can be required to cover all exhibits. The occupational classification itself does not confer investigation, medical diagnosis or legal adjudication authority, nor does it wholly prohibit examining personnel with the corresponding qualifications from signing opinions; the specific scope of examination, review, sign-off and testimony depends on local systems and institutional authorisation.
Choose a real task from this page for a small practice project or a conversation with someone in the field. Use the planning guides to set a date, an output and feedback questions before deciding whether to continue.
Fit signals | O*NET points of focus: face-to-face discussions with individuals and teams every day (86%), using email every day (82%), an extremely important impact of decisions on colleagues and unit results (73%), precision or accuracy extremely important (67%), some freedom to determine tasks and priorities (66%), in an enclosed vehicle or operating enclosed equipment every day (60%), some decision freedom (55%), more than 40 hours of work (48%), handling, controlling or feeling objects and tools with the hands more than half the time every day (48%). If you are willing to collect and examine physical evidence carefully to procedure and can switch between scene and laboratory while keeping records accurate, the daily requirements of this occupation are closer to your way of working.
This list is for self-questioning only and does not constitute recruitment criteria, a capability score, or an evaluation of investigation and forensic conclusions. This page is written according to the US O*NET-SOC 19-4092.00 'Forensic Science Technicians' (the fixed index gives this asset the Chinese name whose English rendering is 'Forensic science technicians'; the main objects are collecting, identifying, classifying and analysing physical evidence related to criminal cases, examining materials such as weapons or fibres and hair and tissue, possibly testifying in court as an expert witness on evidence or crime laboratory techniques, and possibly specialising in fields such as ballistics, fingerprints, handwriting or biochemistry).
Paper exercise | use the complete fictional input of F-01 in the entry exercise on this page, and within 90 minutes check the E01/E02 seals and handover, calculate the E01 mean and relative difference, and identify that batch B blanks exceed the limit and correct the old report. Deliver the evidence list, quality control sheet, anomaly record and a bounded summary; the reference answer, time allocation and marking are given in the same section. Do not handle real samples or hazardous materials.
Paper exercise | use the complete fictional input of F-01 in the entry exercise on this page, and within 90 minutes check the E01/E02 seals and handover, calculate the E01 mean and relative difference, and identify that batch B blanks exceed the limit and correct the old report. Deliver the evidence list, quality control sheet, anomaly record and a bounded summary; the reference answer, time allocation and marking are given in the same section. Do not handle real samples or hazardous materials.
Environment and pace | the scene and laboratory may be divided. O*NET60% of respondents answered an enclosed vehicle or equipment every day, 43% outdoor weather every day, 46% outdoor shelter at least once a week but not every day, 36% contaminants every day, 47% disease exposure at least once a month but not every week; 37% time pressure at least once a week but not every day, 48% a typical working week over 40 hours, 48% handling objects more than half the time. These are respondent distributions, not individual working hours or accident rates, and are not enough to summarise the work as moderately physical or as long periods of standing. The OOH notes that most laboratories work normal hours, with some extended, non-standard or district scene attendance; actual conditions are verified by position.
Adjacent positions | medical laboratory work mainly supports diagnosis and treatment; criminal investigation focuses on investigative leads; fire investigation focuses on fire cause and fire safety inspection. Police identification personnel also handle physical evidence and fingerprints and testify; private investigation may also involve criminal cases. The work overlaps, so the specific tasks, exhibits and appointment must be verified, and the occupational classification on this page is not treated as exclusive authority.
Comparison points | adjacent positions are compared by main object and authority; police identification personnel also examine physical evidence and testify, and private investigators may also be involved in criminal cases. Medical laboratories use clinical samples to support diagnosis and criminal investigation centres on case leads; titles and tasks overlap, and position authority must be verified separately.
| Dimension | Primary track | Comparison track |
|---|---|---|
| Choice and responsibility | Before choosing this occupation, compare: the real tasks (the share of scene examination and laboratory examination and reports and testimony and equipment maintenance), qualification and training paths (relevant degree and on-the-job training and proficiency assessment and state or institutional credentials), working conditions and responsibility (non-standard hours and scene attendance, hazardous materials and biological exposure, extremely serious consequences of error), and growth paths (scene technician, laboratory specialism direction, independent case handling after proficiency assessment, senior technical and quality or training positions). Employers vary considerably (federal, state and local law enforcement agencies, forensic institutions and private laboratories) and this should be verified against actual recruitment and on-site experience. | Adjacent boundaries | police identification and records personnel (O*NET33-3021.02) also handle physical evidence at the scene or in the laboratory, classify and identify fingerprints, take photographs, write records and testify, overlapping with this occupation in both tasks and position titles; the difference must be verified in terms of occupational classification, specific specialism, whether they are police officers and institutional appointment, and it cannot be said that they only keep files or that their examination is limited in depth. Private investigators, by contrast, collect, analyse and report personal or organisational information for clients, and may obtain evidence and testify in criminal or civil cases, not only in civil commercial matters. |
| AI tasks and adoption | AI task exposure | digital tools may assist with organising and annotating scene photographs and video, database search and comparison, preliminary instrument data processing and image enhancement, report templates and chart generation, and case archiving and statistics. But scene collection and packaging and preservation, examination methods and result determination, chain of evidence maintenance, and result interpretation and court testimony remain the responsibility of technicians and qualified personnel; task exposure does not equal job replacement, and tool outputs cannot replace a reviewable explanation of the method. | Responsibility boundaries cannot be inferred from the similarity of job titles: although all are law enforcement and examination positions, investigation and interviewing, patrol and scene handling, identification and records, fire investigation, private investigation, clinical examination and physical evidence examination differ in authority and outputs. Cross-position work requires relearning procedures and qualifications and evidence requirements, and the original position's judgement and sign-off authority cannot be carried over; matters involving the issue of forensic opinions and case conclusions and legal application must be borne by qualified personnel and the corresponding institution. |
| Data and manual checking | Human control points and manual review | scene collection and packaging and preservation, examination method selection and result determination, the chain of evidence and storage conditions, report and conclusion wording, court testimony, and hazardous material and biosafety handling must be completed by technicians and qualified personnel; any comparison result, image enhancement, preliminary identification or report draft generated by a tool must be manually checked with a trace left before use. | Data and system thresholds | before adoption, verify: whether examination data can be traced back to the instrument and batch and method version and personnel; whether tools are validated versions with change records; the permissions and retention periods and encryption requirements for case and party information; the data consistency and audit trails of interfaces with the laboratory information management system and law enforcement databases; and whether procedures allow degraded operation while retaining original records during system failure. |
| Residual responsibility and failure | Failure risk | unreviewed tool outputs may cause false comparisons and misidentification, image enhancement artefacts misread as findings, distorted results and uncertainty wording, missing chain of evidence records, and leakage of case information, creating forensic error and judicial consequences and compliance risk. Before deployment, make clear who reviews and against what original data and procedures. | Residual responsibility | matters that must not be released automatically: whether the physical evidence is in its original state with an intact chain, whether the examination method is applicable and validated, whether the results involve interference or uncertainty, whether the conclusion wording matches the evidence, and decisions involving re-examination and changes to the forensic opinion. No tool output equals a forensic conclusion or an authorisation decision. |
| Statistical boundaries and practice | Exploration suggestion | photographs, data processing and report assistance are not automatically low risk; first observe errors on fictional materials, and handle real materials only under institutional authorisation, validation and traceability requirements, retaining originals, parameters and correction records. Tool effectiveness and adoption were not verified, and being rollback-capable does not mean the integrity of evidence is unaffected. | Employment evidence boundaries | the employment and wage data of this occupation must be distinguished by definition: the US figures from O*NET and the BLS are estimates under a specific statistical definition and cannot be extrapolated directly to mainland China or other regions; China uses industry category average wages as a background proxy, which does not constitute an occupational wage conclusion. Anything generated should be traceable back to the original inputs and sources, and fluent wording must not be treated as correct evidence. |
| Cross-market and gaps | Insufficient evidence: the National Bureau of Statistics release reviewed does not list public occupational wage statistics precisely corresponding to 'forensic science technicians'; industry averages, recruitment quotes or third-party estimates are not used as substitutes. | Cross-market definitions | the NBS2025 urban unit wage release read this round is by industry and does not list this occupation separately; it cannot be concluded from this that no Chinese statistics contain occupational data. US OEWS estimates by SOC occupation, and the two have different coverage, so they are not spliced or converted and industry averages are not substituted for occupational wages. |
| Wage verification definitions | US wage definition | May 2025 OEWS covers employer-reported full-time and part-time employees and excludes the self-employed, unincorporated business owners, household employees and unpaid family workers. It includes basic wages, cost-of-living allowances, hazardous duty pay, commissions, production bonuses and tips; it excludes overtime, shift differentials, non-production bonuses and employer benefits. The hourly and annual wages for this occupation are statistical estimates, and conversion at 2080 hours does not equal an individual's actual hours or total annual income. | Mainland China wage evidence review points | this page provides only statistical definitions, industry background proxies and a register of visible gaps, and does not provide an estimated wage for this occupation. Before using any figure, first confirm whether its statistical definition (industry category / occupation), statistical period, unit of measurement and covered population are comparable with this occupation. |
collect, package and preserve physical evidence to procedure, recording the source and location and time and maintaining the chain of evidence.
examine physical evidence such as fibres and hair and biological samples or firearms and ballistics or fingerprints and footprints using standard methods and record it truthfully.
write records and reports and organise charts and photographs and examination method details to support review and traceability.
give evidence in court as an expert witness on examination methods and results and discuss evidence interpretation with experts in other fields where necessary.
operate and maintain laboratory equipment, prepare and use reagents and handle hazardous materials and biological samples to procedure.
enter and query databases, collaborate with investigation and forensic and judicial personnel and train new staff and others.
Mainland China wage evidence — market definition | the NBS2025 release reviewed this round lists urban unit average wages by industry category and does not list this occupation separately. The scientific research and technical services average serves only as industry background and cannot substitute for the occupational wage of forensic or public security technical staff; the unit and employment form must be verified separately.
Insufficient evidence: no occupational wage median for forensic science technicians that can be verified by occupation was obtained for mainland China; industry category averages are not used as substitutes.
Cross-market definition boundaries | mainland China industry average wages and US occupational wages differ in statistical object, period and definition; this page presents them separately with their limitations noted, does not perform currency conversion, and does not treat industry averages as occupational wages.
| Better suited to people willing to collect and examine physical evidence carefully to procedure, who can switch between scene and laboratory, and who can bear accuracy and consequential responsibility. |
| Medical and Clinical Laboratory Technicians | Output is clinical examination results and reports: sample examination and quality control records, result reports and critical value communication, and instrument maintenance and calibration records. | Centred on clinical sample examination to support diagnosis and treatment: examination of blood and body fluid and tissue samples, instrument and reagent operation and quality control, and release of results and clinical communication. | Better suited to people whose focus is clinical examination and quality control; those who prefer case physical evidence and court explanations fit this occupation. |
|---|
| Detectives and Criminal Investigators | Output is investigative results: leads and the chain of evidence, interview and evidence gathering records, and case investigation reports. | Centred on case investigation and interviewing and the use of evidence: case analysis and lead tracking, interviewing and evidence gathering and coercive measures, and investigative direction and building the chain of evidence. | Better suited to people who take on investigative decisions and interviewing and evidence gathering; those who prefer laboratory examination and technical conclusions fit this occupation. |
|---|
| Fire Inspectors and Investigators | Output is fire investigation and inspection conclusions: fire cause and scene records, hazard inspection and rectification records, and incident and investigation conclusions. | Centred on fire cause and hazard investigation: fire scene examination and cause determination, fire safety installation and hazard inspection, and inspection and rectification and incident records. | Better suited to people whose professional direction is fire investigation and fire safety inspection; those who prefer physical evidence laboratory examination and testimony fit this occupation. |
|---|
| Police Identification and Records Officers | Outputs include scene physical evidence, fingerprint processing, imagery, records and testimony; it is not only identity verification files. | Collect, classify and process physical evidence at the scene and in the laboratory, identify fingerprints, take photographs and maintain records, and may testify; the tasks overlap with this occupation and must be compared by position appointment and specialism. | Those interested in scene identification, fingerprint or records work can compare this direction; it cannot be inferred from the job title alone that they have no examination responsibility. |
|---|
| Private Detectives and Investigators | Output is investigation results: investigation and interview records, material and evidence verification, and investigation reports and client feedback. | Collect, analyse and report personal or organisational information for clients and investigate unlawful or irregular events in private organisations; they may also gather evidence and testify in civil and criminal cases. | Better suited to people focused mainly on civil and commercial investigation and information verification; those who prefer laboratory examination and court testimony fit this occupation. |
|---|
Comparison conclusion | occupational classifications are divided by main task: clinical examination serves medicine, criminal investigation focuses on leads and investigation, and fire investigation focuses on cause and fire safety inspection; police identification personnel overlap with this occupation in physical evidence, fingerprints and testimony. Private investigation may also serve criminal cases. Specific authority depends on the appointment, and substitutability cannot be judged from the title.
Transition | this page sets adjacent positions side by side by 'authority and outputs', to help you judge which kind of law enforcement and examination scene you want to invest in long term. Whichever direction you choose, what really determines whether you can take up the work is your understanding of procedures and evidence and safety requirements, your ability to stay accurate and reviewable in high-consequence situations, and passing the institution's and laboratory's qualification and proficiency assessment; an interest questionnaire is only for raising questions.
Technically feasible: a task may be technically touchable by a tool, which is only a feasibility judgement and does not mean it is permitted or has passed laboratory accreditation.
Institutional adoption: whether to introduce it depends on the procedures and accreditation and evidence requirements of the laboratory and law enforcement institution; evidence and forensic responsibility cannot be transferred by introducing tools.
Job outcomes | this page obtained no causal research on AI-driven job gains or losses in this occupation; case volume, establishment and investment are factors awaiting verification, and job outcomes are not inferred from technical feasibility.
| Work area | Task | Current change | Human control point |
|---|---|---|---|
| Collect, package and preserve physical evidence to procedure and record the source and location and time | Scene collection and packaging and preservation | Photography and recording tools can be used; collection is completed by people | Collection and sealing are completed by people; tools only assist with records |
| Maintain sealing and handover records to keep the chain of evidence intact | Chain of evidence and handover | Ledger and label tools can assist; judgements are completed by people | Chain records and judgements are completed by people |
| Operate equipment and reagents using standard methods and record the methods and parameters | Laboratory examination and methods | Instrument software can assist; determination is completed by people | Method selection and result determination are completed by people |
| Process instrument data and images and carry out comparison and pattern recognition | Data and images and comparison | Software can assist; conclusions are completed by people | Processing parameters and conclusions are judged by people |
| Write reports and organise charts and photographs and examination details | Reports and charts | Template tools can assist; the wording is completed by people | Report conclusion wording is the responsibility of people |
| Give evidence in court as an expert witness on methods and results | Court testimony and explanation | Presentation tools can assist; testimony is completed by people | Testimony and explanation are borne by people |
| Operate and maintain equipment and prepare reagents and handle hazardous materials | Equipment and reagents and safety | Ledgers and reminders can assist; the operation is completed by people | Safety handling and maintenance are the responsibility of people |
Evidence preface | cite only what supports claims within its research scope; state the jurisdiction, period and statistical scope. Global task exposure research cannot prove local adoption rates or individual job changes in this occupation; a technology list does not mean the institution has adopted it or that a method has been accredited.
Difference preface | the following compares the work directions of this occupation in terms of 'what AI mainly changes / what people remain responsible for'. This is an editorial task inference, and ordinary digital tools must be distinguished from generative AI: what may be assisted is the photographic and data and search and reporting steps; scene collection and custody, examination method selection and result determination, the chain of evidence and court testimony always remain with technicians and qualified personnel. Technical feasibility, institutional adoption and job outcomes must be judged separately.
AI primarily changesEditorial exploration suggestion | organising and annotating scene photographs and video, and database search and comparison initial screening, may be trialled with tool assistance, and the efficiency must be verified
Human responsibility remainsScene collection and packaging and preservation, the chain of evidence and sealing and handover records
AI primarily changesEditorial exploration suggestion | preliminary instrument data processing, image enhancement and pattern recognition initial screening may be trialled with tool assistance, and adoption must be checked against institutional validation
Human responsibility remainsExamination method selection and validation, result determination and wording of uncertainty
AI primarily changesEditorial exploration suggestion | report template and chart generation and case archiving and statistics may be trialled with digital or text tool assistance, the effects must be verified, and this is not automatically generative AI
Human responsibility remainsReport conclusion wording, issue of forensic opinions, court testimony and result interpretation
Responsibility preface | the following are editorial governance suggestions: first verify institutional authorisation and tool validation, and make clear the original inputs, reviewer, parameters and anomaly handling; no occupational efficiency research was obtained, so no speed-up is guaranteed.
Physical evidence status and the chain of evidence: whether the item examined is in its original state and whether sealing and handover are complete is judged by technicians and qualified personnel; tools do not judge chain integrity.
Correctness of methods and results: whether the examination method is applicable and validated and whether the results involve interference is determined by technicians after checking the original data.
On-site execution and safety control: scene collection and packaging and preservation and biological and chemical and sharps safety handling are carried out by scene personnel to procedure.
Record authenticity and information protection: examination and handover and photographic records must reflect the real process, case and party information must have its use limited, and unverified records must not be generated with tools.
Escalation and confirmation: decisions involving abnormal results, re-examination, and the wording and change of forensic opinions must be confirmed by qualified personnel and the laboratory manager with records kept.
False comparison and misidentification mislead investigation and judicial judgement
Control: Before concluding, manually check the original data and methods, naming the reviewer and keeping records
Enhancement artefacts or processing bias may be misread as evidence
Control: Methods and parameters must be validated and judged by people; tools only provide an auxiliary format
Sensitive case information may be leaked or misused
Control: Limit use and retention periods, and do not upload sensitive materials to external services
Distorted records affect evidentiary weight and traceability and accountability
Control: Records must reflect the real process; generating unverified records is prohibited
Responsibility cannot be determined when forensic disputes or errors arise
Control: Before adopting tools, first make clear the review and sign-off responsible persons and keep records
Use tools in low-risk support steps: organising scene photographs and video, archive entry and queries, and consumable and equipment ledgers; collection and packaging and preservation are subject to review by the supervising staff.
Use digital tools for scene photography and measurement and records, evidence lists and handover records, and database queries; collection and sealing and chain records are still completed by you to procedure.
Use tools for preliminary instrument data processing, image enhancement and comparison initial screening, and report templates and chart generation; method selection and result determination are completed by you and qualified personnel.
Use tools for data statistics and quality control analysis and for organising method and training materials; the wording of forensic opinions and proficiency assessment and quality judgements must be manually approved with records kept.
The existing sources cannot support a promise that replacement will not happen in the short term. Tools may change some tasks, but there is no adoption rate or causal employment assessment for this occupation; how field operations, method review and testimony responsibility are allocated depends on institutional rules and the specific position.
Source: O*NET 19-4092.00 (tasks and work context)Original source ↗
Common tools include scene photography and measurement and recording tools, database search and comparison, instrument data software and image processing, and laboratory information management systems and report templates; the specifics are subject to institutional and laboratory arrangements.
Source: O*NET tasks and technology; the tool combination is an editorial suggestionOriginal source ↗
The ability to collect and preserve at the scene to procedure, judge methods and uncertainty, make the chain of evidence and records reviewable, and explain methods and conclusions clearly to investigators and the court.
Source: O*NET tasks; the training priority order is an editorial suggestionOriginal source ↗
The ILO global task exposure study is not an adoption survey of a single institution. Judging local change requires separate verification of institutional public procedures, validation records and recruitment requirements; this page collected no institutional adoption rate for this occupation and cannot conclude from a tool demonstration.
Source: ILO2025 global task exposure studyOriginal source ↗
Adoption suggestion | first make clear who reviews the output, against what original data, whether the tool version is validated, and how to fall back if errors occur, and verify institutional procedures and accreditation requirements. Tool outputs should be approved by authorised personnel, and the governance suggestions on this page must not be misread as uniform forensic law across all jurisdictions.
Source: NIST AI RMF (governance principles)Original source ↗
Information use suggestion | manage inputs, outputs and retention per institutional authority; verify privacy, confidentiality and third-party data processing requirements before adoption, and do not send real case materials externally without authorisation. The paper exercise uses fictional data only. This is general governance advice and the specific legal application must be verified against local rules.
Source: NIST AI RMF general governance; the specific measures are editorial suggestionsOriginal source ↗
Judge using three layers of evidence: technical feasibility, whether institutions adopt it, and job outcomes; combine this with the technical investment and case structure of local law enforcement and forensic institutions rather than looking only at a tool demonstration.
Source: ILO task exposure research; the three-layer judgement is an editorial suggestionOriginal source ↗
Summary | photographs, search, comparison initial screening and report assistance can be explored, and the actual efficiency and institutional adoption need separate verification. The original state of the physical evidence, the chain, methods, interference and conclusions must be checked against the original records and actual rules; tools cannot confer sign-off or testimony authority on their own.
Insufficient evidence: no monthly wage data for this occupation that can be verified by city or region was obtained for mainland China; recruitment quotes, industry averages or second-hand accounts are not used as substitutes.
Insufficient evidence: no monthly wage data for this occupation that can be verified by city or region was obtained for mainland China; recruitment quotes, industry averages or second-hand accounts are not used as substitutes.
Insufficient evidence: no monthly wage data for this occupation that can be verified by city or region was obtained for mainland China; recruitment quotes, industry averages or second-hand accounts are not used as substitutes.
Mainland China part | as of this round's search, the National Bureau of Statistics release reviewed does not list public occupational wage statistics precisely corresponding to this occupation; this page provides only definition notes, industry background proxies and a register of visible gaps, and does not provide an estimated wage.
| Education background | Common position directions | Notes and verification suggestions |
|---|---|---|
| Applying for assistant positions (Chinese conditions verified separately) | Scene examination and archive assistant positions | Learns collection and packaging and records and safety procedures under supervision and does not independently take on examination determination or report conclusion responsibility. |
| Preparation through relevant courses and assistant positions (Chinese notices verified separately) | Scene technician and laboratory assistant positions | The education, training, appointment and information permissions of specific Chinese assistant positions are verified against real notices; the US associate degree condition is only US OOH background and is not treated as Chinese education entry or an income ladder. |
| A degree in a relevant subject (specific Chinese positions verified separately) | Forensic science technicians | In the US a bachelor's background is usual, but independent cases require additional training and approval; in China a bachelor's degree does not automatically confer forensic examiner status. |
| Specialist training and position conditions verified separately | Specialist technicians and senior and quality positions | Takes on specialist examination and review in areas such as ballistics, fingerprints, DNA or toxicology; requires the corresponding institutional authorisation or credentials. |
China industry background | this window obtained the NBS2025 original text directly, and the scientific research and technical services non-private 182064 and private 83560 yuan / year match. It covers employees of urban legal entities with 5 or more persons and does not distinguish this occupation; public security and forensic institutions are not uniformly assigned to this industry, and establishment / contract / commission status itself does not determine coverage. It includes bonuses and withheld taxes and personal social insurance and housing provident fund, and is not an individual's total project income.
Verify the position, appointment, registration and forensic scope; this page has no Chinese employer distribution or recruitment sample and does not call any of them a main employer. The US federal / state / local classification is not transplanted as Chinese institution categories.
Verify the institution's licence, personnel registration, categories and actual commissions; a general consulting service name is not used to presume that forensic work can be carried out or that recruitment demand exists.
Teaching and research positions and lawfully conducted forensic work are verified separately; the name of an institution or hospital does not automatically prove forensic qualification or demand for this occupation. This page obtained no sample of Chinese institutional task distribution.
Insufficient evidence: the sources this round provided no verifiable generative AI exposure rating, adoption rate or replacement year for SOC19-4092, and this page neither rates it as medium nor guarantees it will not be replaced in the short term. As an editorial inference from the tasks, record organisation, search and report drafts may be assisted; general digitalisation, automatic comparison and generative AI must be distinguished. Method validation, original data review, the chain of evidence and sign-off responsibility are still borne per institutional rules.
| P50 is the median of the wage distribution, not a starting wage, recruitment condition or personal income guarantee. |
| Highest 10% | 90th percentile 117,250 US dollars / year (2025, BLS OEWS) | Official annual wage, not personal take-home pay | P90 is the top decile of the wage distribution and does not mean it can be reached through seniority, federal service or obtaining a certificate. |
|---|
Pay · median annual wage：Median annual wage 72,060 US dollars (2025, BLS OEWS)；Definition | wage definition: May 2025 OEWS covers employer-reported full-time and part-time employees and excludes the self-employed, unincorporated business owners, household employees and unpaid family workers. It includes basic wages, cost-of-living allowances, hazardous duty pay, commissions, production bonuses and tips. It excludes overtime, shift differentials, non-production bonuses and employer benefits. The hourly and annual wages for this occupation are statistical estimates, and conversion at 2080 hours does not equal an individual's actual hours or total annual income.； boundary | a statistical position does not equal personal income, recruitment or position qualifications.
Pay · 10th percentile：10th percentile 48,250 US dollars / year (2025, BLS OEWS)；Definition | P10 is the bottom decile of the wage distribution and does not correspond to newcomers or junior grades, nor does it constitute a starting wage.； boundary | a statistical position does not equal personal income, recruitment or position qualifications.
Pay · 25th percentile：25th percentile 57,830 US dollars / year (2025, BLS OEWS)；Definition | lower quartile of the US national wage distribution； boundary | it is in the lower part of the distribution, with large differences by institution type and region and specialism.
Pay · 75th percentile：75th percentile 94,520 US dollars / year (2025, BLS OEWS)；Definition | P75 is the upper quartile of the wage distribution and cannot be used to determine seniority, specialism or employer type.； boundary | a statistical position does not equal personal income, recruitment or position qualifications.
Pay · 90th percentile：90th percentile 117,250 US dollars / year (2025, BLS OEWS)；Definition | P90/P10 is about 2.43 (117250 ÷ 48250), a distribution gap rather than an individual's promotion range or pay reachability.； boundary | a statistical position does not equal personal income, recruitment or position qualifications.
The median is the midpoint of the wage distribution, and the percentile gap does not show a causal role for seniority or specialism, nor does it correspond to an individual's starting wage.
The hourly and annual wages are statistical wage rates, and the annual wage may be converted at 2080 hours; personal income must be verified against the actual contract, paid hours and inclusions.
The wages come from the 2025 OEWS; employment, growth and openings come from the employment projections programme, and the projected headcount cannot be used to explain wage percentiles.
Verify the contract duties, location, hours, bonuses and benefits; this page does not quantify the effect of these conditions on an individual's wage.
| Industry | Wage median for this occupation within the industry | How to understand this value |
|---|---|---|
| Federal government executive branch (OEWS classification) | 126,300 US dollars / year | The industry median for this occupation in the federal executive branch, not the wages of all federal employees. |
| Management, scientific and technical consulting services | 125,740 US dollars / year | The estimate for this occupation in that industry, and not representative of all private forensic laboratories. |
| Local government, excluding schools and hospitals | 70,050 US dollars / year | The annual wage median for this occupation within the OEWS designated industry, not an individual quote in a region. |
| State government, excluding schools and hospitals | 74,740 US dollars / year | The median for this occupation within the state government industry, excluding the schools and hospitals industry. |
In this round's Profiles, the industry medians for this occupation are: federal executive branch 126,300 US dollars, management scientific and technical consulting 125,740 US dollars, state government 74,740 US dollars and local government 70,050 US dollars; these are not the wages of all federal positions or an individual contract.
Verify the position's specialism, duties, training and qualification requirements; this page has no specialism pay research controlling for seniority and region and cannot conclude that passing a DNA or ballistics assessment raises the income ceiling.
Verify the work location, taxes, housing and living costs; a high-wage region list is not a purchasing-power ranking adjusted for living costs.
Definition | the 2025 projection base period is 20,100 people and about 22,800 in 2035. The table shows a self-employment share of 0.9%. OEWS May 2025 employment is 19,120 people, and the programmes differ so they cannot be mixed.； boundary | a statistical position does not equal personal income, recruitment or position qualifications.
Definition | the employment projection table shows growth of 13.3%, and the OOH displays 13% as a whole number. The net increase of about 2,700 people does not equal annual recruitment or a change caused by AI.； boundary | a statistical position does not equal personal income, recruitment or position qualifications.
Definition | US employment projection openings； boundary | these are 2025—2035 annual average openings including replacement needs and do not constitute an individual employment guarantee.
Which Holland interest type is closer to forensic science technicians?
Holland (RIASEC) | used to understand your relative position on Investigative, Realistic and Conventional preferences. The O*NET interest code for this occupation is IRC (Investigative—Realistic—Conventional), corresponding to researching and analysing physical evidence and data, on-site and instrument and hands-on operation, and working to procedures and standards and records. A questionnaire is only for raising questions, not for judging suitability or employability.
Do not use it this way: If you clearly reject strict procedures and paperwork and review, or are uncomfortable about biological and chemical and hazardous materials and field conditions, a high questionnaire score cannot change that real cost.
Test my Holland career interestsWhich Big Five traits are more relevant to this job?
Big Five | the questionnaire can raise questions about detailed recording, continuous review and communication under pressure; this page found no dedicated research on personality scores and performance or recruitment in this occupation and does not claim that conscientiousness or emotional stability scores determine fit.
Do not use it this way: Do not use 'a personality test says I am not suited' as a reason to give up or not enter the trade; rely on laboratory and field practice and assessment.
View my Big Five personality traitsCan MBTI be used to judge whether I am suited to forensic science technicians?
MBTI | typology is used for self-reflection on communication and work preferences; this occupation requires communicating to procedure with scene and investigation and laboratory and judicial personnel, and a preference does not determine competence.
Do not use it this way: Treat the type only as a reference for communication style, and do not use it to infer whether you or others can do collection and examination and testimony work well.
Understand my MBTI preferencesCan the Enneagram tell me whether I am suited to this occupation?
Enneagram | used to observe how you react under pressure; when results are abnormal or challenged, being able to check and report first as required matters more than a type label.
Do not use it this way: Do not use type labels to explain examination or record errors; go back to whether the method, procedure and chain were in place.
Explore my Enneagram patternsIf I am not good at maths, can I be a forensic science technician?
Reasoning experience | use simulated record checking, quality control anomaly identification and unit conversion to observe the learning process; an online intelligence score cannot replace method training or practical assessment.
Do not use it this way: A high or low score cannot show whether you can learn examination and records; test it through laboratory training and practical assessment.
Understand my intelligence and reasoning performanceDo forensic science technicians need high emotional intelligence?
Communication experience | observe whether you can explain from the original records when challenged, acknowledge the unknown and accept review; no particular emotional intelligence score is required.
Do not use it this way: Emotional ability can be improved through field and laboratory experience and deliberate practice, and there is no need to limit yourself by assessment scores.
Understand my emotional intelligence abilitiesFits better when: Has procedural and accuracy awareness and is willing to bear consequential responsibility and accept review
Watch for: If you find it hard to bear strict procedures and consequential responsibility, or are uncomfortable about biological and chemical and hazardous materials and field conditions, this occupation is not recommended.
Explore related career: This occupation (forensic science technicians) directionFits better when: Has clinical examination and quality control capability and can bear result release responsibility
Watch for: If you prefer case physical evidence and court explanations rather than clinical examination, this direction is not recommended.
Explore related career: Medical and clinical laboratory technicians directionFits better when: Has investigative judgement and interviewing and evidence gathering capability
Watch for: If you are unwilling to take on investigative decisions and coercive measure responsibility, this direction is not recommended.
Explore related career: Detectives and criminal investigators directionFits better when: Has fire investigation and fire safety inspection capability
Watch for: If you have little interest in fire investigation and fire safety inspection, this direction is not recommended.
Explore related career: Fire inspectors and investigators directionFits better when: Compare the identification techniques required, recording ability, whether they are police officers and institutional authorisation; the boundary cannot be drawn as having limited examination depth.
Watch for: Those who want to examine physical evidence can also compare this direction, verified by exhibit specialism and appointment scope, and it is not an exclusionary recommendation.
Explore related career: Police identification and records officers directionFits better when: Has information verification and investigation and communication capability
Watch for: If you prefer instrument examination of physical evidence, compare laboratory positions first; private investigation may also involve testimony, so appearing in court cannot be used to exclude it.
Explore related career: Private detectives and investigators directionWhat personality is it suited to? This occupation values procedural awareness, responsibility and accuracy more than any personality type; the O*NET interest code is IRC (Investigative—Realistic—Conventional) and can serve as a starting point for exploration.
Introversion does not automatically rule out entering the trade. The position still requires clear communication and possible testimony; the O*NET31% is the share answering public speaking every day, not the proportion appearing in court daily.
What should you prepare before entering? First understand the real pace (scene and non-standard hour attendance, more than 40 hours of work for 48%, time pressure at least once a week but not every day for 37%) and the safety requirements (contaminants and biological and chemical exposure), and confirm your own professional direction; you can start with scene examination or laboratory assistance. The percentages are respondent distributions, not individual working hours, event rates or prevalence.
Where does the daily pressure mainly come from? The consequences of error are extremely serious (47%), precision or accuracy extremely important (67%), an extremely important impact of decisions on colleagues and unit results (73%), exposed to contaminants every day (36%), and exposed to disease or infection at least once a month but not every week (47%). The percentages are respondent distributions, not individual working hours, event rates or prevalence.
Are there physical requirements? The work requires outdoor and enclosed space work and long periods of operation and fine hand use (handling objects more than half the time 48%, in an enclosed vehicle or equipment every day 60%); specific employment and medical examination and qualification requirements are subject to the employer and local rules, and this page does not provide medical examination conclusions.
Is education required? The O*NET answers on the education needed by newly hired workers are postsecondary certificate 36% and high school or equivalent 29%; these are shares of answers about the education needed, not the education distribution of existing or newly hired workers (the page lists only two percentages), and the Job Zone is 3 (SVP 6.0 to <7.0); the BLS states that a bachelor's degree is usually required; actual requirements are subject to the employer and position requirements.
Risk check | on-site weather, contaminants, posture and safety exposure are the work context; these answer shares are not prevalence rates. This page cannot predict an individual's long-term health from them, and specific protection follows institutional procedures.
Career cycle and transition directions? You can grow from scene or laboratory assistance into a technician and specialism role and take on cases independently after proficiency assessment, or move to senior technical and quality and training positions, or to detective and criminal investigation, fire investigation, medical and clinical laboratory and digital forensics directions; changing direction requires relearning procedures and qualifications.
Chinese and US preparation differences | the US OOH describes a usual bachelor's background and on-the-job training; the O*NET preparation area is Job Zone3, which is not a statutory licence. Chinese judicial administration and public security examiner registration are verified separately, and a degree or assistant appointment does not automatically make someone an examiner.
Verification suggestion | first complete the fictional record and quality control exercise on this page, identify anomalies, retain original records and state the limitations of the results; real scenes and laboratory operations are attended only under lawful teaching or institutional authorisation.
Typical scenario：Scenario | after scene collection, the sealing and handover times were not registered item by item, and when submitted for examination the seal was found damaged with no way to explain the transfer process.
Roles most affected：Scene technicians and examiners; investigation and judicial proceedings
Possible consequence：Incomplete collection and sealing and handover records, or damaged seals, or storage conditions not meeting requirements; doubt about evidentiary weight and a broken chain, possibly affecting the case
How to reduce risk：Collect and seal to procedure and record the source and location and time and handover item by item, and report immediately on damage; if a break in the chain is found, pause immediately, check the original records and handle per procedure
Evidence：O*NET forensic science technicians detailed information · O*NET forensic science technicians detailed information
Typical scenario：Scenario | a conclusion was drawn using an instrument not operated per the validated method, with no controls or quality control, and a result seriously inconsistent with expectations was not reviewed.
Roles most affected：Examiners and reviewers; the case and the parties
Possible consequence：Improper or unvalidated method selection, or misjudged results and unidentified interference and contamination; a wrong forensic conclusion, possibly misleading investigation and judicial judgement
How to reduce risk：Examine per the valid version procedure and validated methods with controls and quality control and record uncertainty and anomalies truthfully; on finding an anomaly or interference, pause immediately and re-examine and report per procedure
Evidence：O*NET forensic science technicians detailed information · O*NET forensic science technicians detailed information
Typical scenario：Scenario | biological samples were handled without a biological safety cabinet or protective equipment, resulting in splash exposure and a cut.
Roles most affected：Scene and laboratory personnel; the individual and colleagues
Possible consequence：Biological and chemical and contaminant and sharps exposure or inadequate protection, or improper use of equipment and reagents; personal injury such as infection and poisoning and burns and cuts and laboratory accidents
How to reduce risk：Use protective equipment and biological safety cabinets per biological and chemical safety procedures and dispose of waste properly; on exposure or injury, follow the emergency process immediately and seek medical attention and report
Evidence：O*NET forensic science technicians detailed information · O*NET forensic science technicians detailed information
Typical scenario：Scenario | case photographs were exported without authority and forwarded to an external messaging tool, causing case information to leak.
Roles most affected：Technicians and the institution; the case and the parties and the public
Possible consequence：Case and party information and examination data and photographs leaked or accessed without authority; privacy and case confidentiality harmed, affecting the parties' rights and judicial credibility
How to reduce risk：Governance suggestion | use materials per institutional authority and the minimum necessary principle and record access; on discovering a leak, escalate per the institutional incident process, and the specific containment and notification are handled by authorised personnel per local requirements.
Evidence：NIST AI RMF: general information and AI risk governance · NIST AI RMF: general information and AI risk governance
Typical scenario：Scenario | the examination steps stated in court were inconsistent with the written report, and definite conclusions were given on questions beyond the field of expertise.
Roles most affected：Technicians and qualified personnel; the court and the case
Possible consequence：Court statements inconsistent with the report or method, or opinions given beyond the professional scope; credibility of testimony harmed and the forensic opinion challenged, affecting the case
How to reduce risk：Testify truthfully from the records and methods, make the uncertainty and professional scope clear and accept questioning; if the wording is found to be inconsistent with the records, correct it immediately and explain per procedure
Evidence：O*NET forensic science technicians detailed information · O*NET forensic science technicians detailed information
Typical scenario：Scenario | a remote scene was examined alone at night and the vehicle was involved in a traffic accident on the return journey.
Roles most affected：Scene and laboratory personnel; the individual and others
Possible consequence：Safety risks in scene and traffic and equipment and night and outdoor work, or working alone; traffic accidents and falls and equipment injuries and personal safety risk
How to reduce risk：Work per scene and traffic safety procedures and wear protective equipment, and avoid entering risky scenes alone without support; on threats or unsafe situations, withdraw immediately and request support
Evidence：O*NET forensic science technicians detailed information · O*NET forensic science technicians detailed information
| Occupational direction | Starter tasks | Evidence you can prepare | Work you can show without experience | How it differs from this occupation |
|---|---|---|---|---|
| Scene examination assistant technician | Scene photography and measurement and record assistance, evidence list and handover registration assistance | Scene internship and training records, supervising staff appraisal | A fictional scene examination and evidence handover record | Carries out scene collection and record assistance, whereas this occupation also carries laboratory examination and result explanation |
| Laboratory assistant technician | Sample registration and consumable preparation and equipment cleaning and simple examination assistance | Laboratory training and safety training records | A fictional sample registration and examination record | Carries out examination assistance, whereas this occupation independently carries method selection and result determination and reporting |
| Medical and clinical laboratory technicians | Clinical sample examination and quality control assistance, instrument operation and maintenance | Examination training and quality control records | A fictional clinical sample examination and quality control record | Uses clinical samples to support diagnosis, whereas this occupation uses case physical evidence to support investigation and justice |
| Detectives and criminal investigators | Case and lead organisation assistance, evidence gathering and interview record assistance | Investigation training and internship experience | A fictional case lead and evidence summary note | Responsible for investigation and interviewing and investigative direction, whereas this occupation is responsible for physical evidence examination and technical conclusions |
| Fire inspectors and investigators | Fire hazard inspection assistance, fire scene record assistance | Fire safety training and inspection records | A fictional fire scene examination and hazard inspection record | Responsible for fire cause and hazard investigation, with a different specialism and authorisation |
The BLS states that a bachelor's degree is usually required and some positions accept a college diploma; subject directions include physical science, biology or forensic science (such as toxicology, pathology or DNA directions).
Education, training, proficiency assessment, registration and institutional authorisation are verified separately; this page has no comparative study of the explanatory power of these factors and does not claim that education only screens or that ability is mainly determined by assessment.
Some positions require background verification and law enforcement agency employment conditions (including police academy requirements for sworn officer positions), and training and assessment in a specialist direction (ballistics, fingerprints, DNA, toxicology or digital forensics).
Positions involving independent case examination may require passing proficiency examinations set by the state or institution and accreditation bodies; the specifics are subject to the employer and local requirements.
The work context emphasises precision or accuracy extremely important (67%), a very important impact of decisions on colleagues and unit results (73%), the consequences of error extremely serious (47%), exposed to contaminants every day (36%), wearing protective equipment every day (36%), exposed to disease or infection once a month or more (47%), and more than 40 hours of work (48%).
Simulated method M-1 is an arithmetic exercise only: blank readings should be ≤0.020; the standard reading is 0.100 with a permissible range of 0.090—0.110; and for samples the relative difference of the two readings = absolute value of the difference ÷ mean × 100%, which should be ≤10%. The values are dimensionless; they do not correspond to real forensic thresholds and no reagent preparation is required.
Batch A: blank 0.010, standard 0.100, E01 readings 0.080 and 0.084; batch B: blank 0.030, standard 0.100, E02 readings 0.120 and 0.118. Anomalies have been deliberately planted. The two readings and their mean cannot prove that fibres come from the same source, or establish identity or case facts.
The old draft awaiting review says 'E01 and E02 are both valid, E02 matches source X, and the handover is complete'. No comparison sample is provided for source X. Review using only the inputs of this task and do not invent missing records. The tool is pen and paper or a spreadsheet calculator, with a 90 minute limit.
For each record write the number, point, known time, responsible role, seal status and whether the record is missing; write unknown where there is no value. Write out the steps to pause, report to the fictional supervisor and preserve the original records, without adding signatures or backfilling.
Mark whether it was completed independently or under guidance, the tools used and the revisions, and do not pass it off as measured or casework results.
If no one is available, first cover the answer and complete it independently, then write an error list against the answer on this page; self-checking does not pretend to be expert confirmation.
Attach the original and correction records, to-dos, assumptions and authority boundaries, all using fictional codes.
Do not claim the tool has been laboratory validated; this exercise has no real equipment, measured samples or institutional approval.
| Stage | Points that may be checked | Observable evidence | Boundary statement |
|---|---|---|---|
| CV and initial screening | Relevant degree and courses, laboratory and field experience, safety and procedural awareness | Degree and course certificates, training and internship records | Self-assessment cannot replace training and course certificates |
| Interview | Understanding of procedures and methods and the chain and safety and testimony | Judgement on result anomalies and the chain and exposure handling during on-site questions and answers | Scenario answers cannot replace practical work and assessment |
Deliver a one-page task and source note that distinguishes Chinese qualifications.
Deliver an observation and unknown list without requiring attendance at a real scene.
Deliver the E01/E02 and seal anomaly records.
Deliver the formulas, inputs, units and the pass / fail explanation.
Deliver the old report correction and the two errors requiring rework; if you made no error, record the real self-check result.
| Qualification or preparation item | Who it applies to | Effect on this occupation | Whether generally required | Conditions for obtaining | Approximate investment | Limitation note |
|---|---|---|---|---|---|---|
| Relevant degree (United States) | Those applying for scene or laboratory positions | The OOH usually lists a bachelor's degree; some positions accept an associate degree | Typical preparation, not a uniform requirement for all positions | Verify the subject and degree conditions in the notice | Verify against the actual programme length |
Typical scope：Under supervision, takes on scene photography and measurement and records and evidence list assistance; does not independently take on collection and sealing or examination determination responsibility.
Readiness evidence：Shadowing records and supervising staff appraisal; can restate the collection and sealing and safety key points.
Credential boundary：Scene examination and safety training records.
Next moves：Follows senior technicians to become familiar with scene types and collection and sealing and handover procedures, and records the key learning points each day.
Typical scope：Independently completes scene collection and packaging and preservation and the evidence list and handover records and reports anomalies per procedure.
Readiness evidence：Scene examination and sealing and handover records and review opinions.
Credential boundary：On-the-job training records; biological and chemical safety training.
Next moves：Builds proficiency across various scene and exhibit types and practises chain records and anomaly handling.
Typical scope：Independently completes routine and specialist examinations, carries out controls and quality control per valid methods and writes reports and court explanations.
Readiness evidence：Examination and quality control and report records; proficiency assessment results; court appearance records.
Credential boundary：Specialist direction training and proficiency assessment; institutional authorisation.
Next moves：Deepens specialist direction method and instrument capability and takes part in review and court appearances.
Typical scope：Responsible for method validation and quality assurance and training and technical management, handling complex and disputed cases and mentoring new staff.
Readiness evidence：Quality and validation and training records; accreditation and review conclusions.
Credential boundary：The corresponding seniority and institutional appointment.
Next moves：Improves method validation and quality control and training and accreditation systems.
Typical scope：Responsible for exhibit receipt and registration and storage conditions and archive and database entry and queries.
Readiness evidence：Receipt and storage and archive records and how they were reviewed.
Credential boundary：Archive and information management training; no examination determination or information disclosure authority.
Next moves：Familiar with storage conditions and chain requirements and information permissions and audit trails.
Typical scope：Responsible for equipment calibration and maintenance and reagent preparation and expiry and consumable management and records.
Readiness evidence：Calibration and maintenance and reagent records.
Credential boundary：Equipment and chemical safety training; no method validation decision authority.
Next moves：Learns calibration and maintenance and reagent and reference material management key points.
Typical scope：Assists with method validation and quality control data statistics and deviation investigation and rectification tracking.
Typical scope：Responsible for information liaison with investigation and prosecution and judicial personnel and for coordinating exhibits and progress and time limits.
Readiness evidence：Liaison and progress and handover records.
Credential boundary：Confidentiality and collaboration training; no authority to interpret examination conclusions.
Next moves：Familiar with the case process and exhibit requirements and time limits and confidentiality requirements.
Typical scope：Responsible for scene attendance and duty arrangements and equipment and safety and logistics coordination, recording attendance and anomalies.
Readiness evidence：Attendance and equipment and safety records and anomaly handling.
Credential boundary：Emergency and safety training; institutional authorisation.
Next moves：Learns scene safety and equipment and emergency and cross-departmental collaboration arrangements.
Typical scope：Responsible for mentoring new staff and specialist training and organising proficiency assessment and managing skills files.
Learns collection and packaging and records and safety procedures under supervision and takes on scene and laboratory assistance; does not independently take on examination determination or report conclusion responsibility.
Can independently complete processes such as collection and sealing and routine examination and records and reports anomalies per procedure; independent casework requires proficiency assessment.
Takes on specialist examination and review in areas such as ballistics, fingerprints, DNA or toxicology and is responsible for method and result explanation and court testimony.
Takes part in method validation and quality assurance and training and technical management and handles complex and disputed cases; requires the corresponding institutional authorisation and seniority.
Does not establish：The employment projections include the self-employed, shown as 0.9% for this occupation; May 2025 OEWS employment of 19,120 people excludes the self-employed. The programmes and coverage differ, and a projection does not equal actual recruitment.
United States · SOC 19-4092（OEWS May 2025）
Median annual wage 72,060 US dollars (median hourly wage 34.65 US dollars); percentiles 48,250 / 57,830 / 94,520 / 117,250 US dollars
Wages (median and percentiles)
The median is the midpoint of the distribution and P90/P10 is about 2.43; the wage table does not provide a causal breakdown by specialism, seniority and region.
Does not establish：OEWS excludes the self-employed and includes production bonuses while excluding non-production bonuses, overtime, shift differentials and benefits; the four industry medians for this occupation have been verified and are no longer registered as a gap.
Mainland China · National Bureau of Statistics average wage of employed persons in urban units (industry categories)
Insufficient evidence: the National Bureau of Statistics release reviewed does not list occupational wage and employment statistics precisely corresponding to this occupation; this page only registers the definitions and authorising sources and does not provide estimated values.
Industry average wage (background proxy)
The NBS urban legal entity with 5 or more persons industry average does not distinguish this occupation; establishment, contract or commission status itself does not determine coverage, so verify by the specific unit and reporting method and do not fill in occupational or personal income.
Does not establish：Industry definition, published annually, differing from the US occupational wage definition, with no splicing or conversion.
The following are editorial comparison tasks and preparation directions; the badge marks topics requiring verification, not transfer difficulty, success rate or a statutory route. Appointment, study and licensing conditions must be verified against the specific position.
Transfers：Editorial comparison | evidence observation, factual recording and result explanation are reusable; interviewing and investigative judgement and coercive measure authority must be learned and verified separately.
Build next：Need to build investigative judgement and interviewing and evidence gathering capability
View career profileTransfers：Editorial comparison | scene observation, records and teamwork are reusable; patrol, enforcement procedure and appointment cannot be carried over directly.
Build next：Need to build patrol and scene handling and enforcement capability
View career profileTransfers：Shared abilities include physical evidence handling, photography, records and testimony; additional requirements are subject to the specific position
Build next：Need to verify fingerprint identification, scene physical evidence handling and police officer appointment
View career profileTransfers：Editorial comparison | scene photography, evidence records and report presentation are reusable; fire cause reasoning, fire safety inspection and facility knowledge must be added.
Build next：Need to build fire investigation and fire safety inspection capability
View career profileTransfers：Editorial comparison | document verification, evidence records and report presentation are reusable; client commissions, investigation methods and local licensing requirements must be verified separately.
Build next：Need to build civil and commercial investigation and information verification capability
View career profileTransfers：Editorial comparison | instrument operating habits, quality control and records are reusable; clinical specimens, patient risk and result release require retraining.
Build next：Need to build clinical examination and quality control capability
View career profileTransfers：Editorial comparison | method validation, data analysis and records are reusable; clinical interpretation and technologist position conditions must be verified separately.
Build next：Need to build clinical examination technique and method development capability
View career profileTransfers：Editorial comparison | procedure checking, traceable records and anomaly escalation habits are reusable; organisational regulations, auditing and regulatory communication must be added.
Build next：Need to build organisational compliance and audit and risk management capability
View career profileMedical laboratory work mainly serves diagnosis and treatment, while criminal investigation mainly investigates leads and cases; police identification personnel also handle physical evidence and fingerprints and testify, with tasks overlapping this occupation. Private investigation may involve criminal and civil cases. The specific specialism, whether they are police officers and the appointment explain the boundary better than the title.
The May 2025 annual wage median is 72,060 US dollars and the hourly wage median 34.65 US dollars; annual wages P10 are 48,250, P25 57,830, P75 94,520 and P90 117,250. OEWS employment is 19,120 people, and the projection has a 2025 base period of 20,100 people and about 22,800 in 2035, growth of 13.3% and 2,800 average annual openings. OEWS and the projections are different programmes; openings are not net increases, and wages include production bonuses but exclude overtime, shift differentials, non-production bonuses and benefits.
The National Bureau of Statistics release reviewed does not list public occupational wage statistics precisely corresponding to this occupation. The National Bureau of Statistics publishes the average wage of employed persons in urban units by industry category (for example scientific research and technical services: urban non-private 182,064 yuan / year and urban private 83,560 yuan / year), which is an industry definition that does not distinguish occupations and can only serve as a background proxy; the mainland China part of this page retains the visible 'Insufficient evidence:' marker and does not use industry averages, recruitment quotes or third-party estimates as substitutes.
The O*NET work context shows: face-to-face discussion with individuals and teams every day 86%, using email every day 82%, an extremely important impact of decisions on colleagues and unit results 73%, precision or accuracy extremely important 67%, in an enclosed vehicle or enclosed equipment every day 60%, outdoor exposure every day 43%, exposed to contaminants every day 36%, wearing protective equipment every day 36%, exposed to disease or infection more than once a month 47%, the consequences of error extremely serious 47%, and more than 40 hours of work 48%. Scene and laboratory work coexist, and procedures and protective equipment and occupational health management can reduce the risk, but biological and chemical exposure and consequential pressure are real costs.
This page proposes possible tool support directions from the tasks and obtained no AI exposure level, adoption rate or replacement year for this occupation; ordinary instrument software and generative AI must not be conflated. Actual use requires verification of method validation, original data, privacy, review and sign-off responsibility; no promise is made that replacement will not occur in the short term, and employment causation is not inferred from a technology demonstration.
The O*NET answers on the education needed by newly hired workers are postsecondary certificate 36% and high school or equivalent 29%; these are shares of answers about the education needed, not the education distribution of existing or newly hired workers (the page lists only these two percentages); the Job Zone is 3 (SVP 6.0 to <7.0); the BLS states that a bachelor's degree is usually required (physical science, biology or forensic science direction), that some positions accept a college diploma, and that on-the-job training and proficiency assessment are required. Actual requirements are subject to the employer and position requirements and local rules.
The US OOH states that certification is usually not a uniform entry requirement, and independent cases may require a proficiency examination or institutional approval; some police officer positions separately require police training. China check | under the judicial administration registration system, a forensic examiner must be registered and work within the practice category and the institution's scope; the General Rules on Forensic Examination Procedure provide for review, examiner signature and institutional seal. Public security organs have a separate 2020 examiner registration measure, and the two routes must not be conflated. A degree, an assistant position or institutional training does not automatically become examiner status; those with qualifications and authorisation can bear sign-off responsibility.
Common failures include: incomplete collection and sealing and handover records leading to doubt about the chain of evidence, improper methods or misjudged results and unidentified interference leading to wrong conclusions, biological and chemical and contaminant and sharps and equipment exposure, leakage of case and party information, court statements inconsistent with the report or opinions beyond scope, and personal safety risks in scene and traffic and night work. Control points are acting to procedure and validated methods with records, and pausing and reviewing and escalating per procedure.
Under the US definition growth over 2025—2035 is projected to be much faster than average (about 13%), with openings including a large share of replacement needs; a projection is not an individual opportunity, and actual opportunities depend on the technical investment and establishment of local law enforcement and forensic institutions. You can move to adjacent positions such as detectives and criminal investigators, police and detectives, police identification and records, fire inspection and fire investigation, private investigation, medical and clinical laboratory technology and compliance (which require relearning procedures and qualification requirements), or to laboratory quality management and technical management positions.
Research this round | on 2026-10-11 the O*NET19-4092 tasks, context, IRC and new-hire education questions were read; the BLSMay2025 dynamic table loaded normally with the national and four-industry original values matching, and the 2025—2035 precise row matched. The OOH bachelor's / some associate and training proficiency conditions were read. The Shenzhen official forensic registration and procedure full text was obtained, and although the tool failed to open the original public security examiner page, the key articles 2/8/26/31 are visible in the official search full text; judicial administration and public security registration are verified separately. NBS follows this window's direct full text, and ILO / NIST follow this window's method evidence and are not occupational adoption research.
Reviewed on 2026-10-11; O*NET2026, OEWSMay2025, projections 2025—2035, NBS2025; the original shared 2026-10-03 historical date is retained and does not replace the current verification.
Source register | occupational wage Profiles, the OEWS method, employment projections, the OOH, NBS, adjacent tasks, AI research and Chinese regulations are registered separately; the scope of each source follows the actual claim, and a statistical method is not evidence of position adoption.
Limitations：US occupational materials do not automatically imply mainland China practice licences, institutional authorisation or employer requirements.
Limitations：Certification entries are not a substitute for local licences, employment qualifications or independent disposition authority.
Limitations：Projected increments or average annual openings must not be directly interpreted as personal income or a guarantee of recruitment.
Limitations：Not the complete percentile or industry median table for this occupation.
Limitations：The exact occupational wage gap for mainland China remains open, and industry proxies are not passed off as occupational wages.
Limitations：Not an external occupational fact source and does not replace official statistics or jurisdictional rules.
Limitations：Sample estimates of wage employment excluding the self-employed; percentiles are not seniority grades, and the industry table is not all industries or a personal quote.
Limitations：The method note supports the statistical inclusions and does not prove personal income.
Limitations：Common preparation does not equal a uniform national licence or Chinese forensic registration requirements.
Limitations：Does not support an exposure level, replacement year or individual employment forecast for SOC19-4092.
Limitations：Does not replace forensic laboratory validation, forensic standards or evidence procedure.
Limitations：Explains the institutional boundary only; individual entry must be verified with the competent authority.
Limitations：Different specialties have separate procedures; a web page occupational title is not treated as a practice licence.
Limitations：Direct reading was unsuccessful and only the official search index was verified; this page uses it only to distinguish the systems and does not give specific application conditions.
Limitations：Chinese jurisdiction; not all case photographs are classified as sensitive personal information.
Limitations：That adjacent occupation's material only, and cannot serve as evidence for this occupation's wages or Chinese qualifications.
Limitations：That adjacent occupation's material only, and cannot serve as evidence for this occupation's wages or Chinese qualifications.
Limitations：That adjacent occupation's material only, and cannot serve as evidence for this occupation's wages or Chinese qualifications.
Limitations：That adjacent occupation's material only, and cannot serve as evidence for this occupation's wages or Chinese qualifications.
Limitations：That adjacent occupation's material only, and cannot serve as evidence for this occupation's wages or Chinese qualifications.
Limitations：That adjacent occupation's material only, and cannot serve as evidence for this occupation's wages or Chinese qualifications.
Limitations：That adjacent occupation's material only, and cannot serve as evidence for this occupation's wages or Chinese qualifications.
Limitations：That adjacent occupation's material only, and cannot serve as evidence for this occupation's wages or Chinese qualifications.
Limitations：Editorial ratings use the existing occupational responsibilities and AI task analysis on this page. They are not adoption rates, measured effects, job-disappearance or personal-unemployment probabilities, or official scores from Stanford or another external institution. No measured time weights or future robot deployment are assumed.
Insufficient evidence: exact Chinese occupational wages, employment and city / institutional income were still not obtained from the sources read this round; AI exposure rating, adoption rate and replacement year for this occupation were also not obtained. The four US industry medians have been completed and are no longer listed as gaps. Only verified industry background is provided, and recruitment quotes or estimates are not used as substitutes.
MBTI (English) · Big Five (English) · MBTI (Chinese) · Big Five (Chinese)
Insufficient evidence: no forensic science technician wage data verifiable by region or institution type was obtained for mainland China; individual quotes or second-hand accounts are not used as substitutes.
US wage definition | May 2025 OEWS covers employer-reported full-time and part-time employees and excludes the self-employed, unincorporated business owners, household employees and unpaid family workers. It includes basic wages, cost-of-living allowances, hazardous duty pay, commissions, production bonuses and tips; it excludes overtime, shift differentials, non-production bonuses and employer benefits. The hourly and annual wages for this occupation are statistical estimates, and conversion at 2080 hours does not equal an individual's actual hours or total annual income.
US wage definition | May 2025 OEWS covers employer-reported full-time and part-time employees and excludes the self-employed, unincorporated business owners, household employees and unpaid family workers. It includes basic wages, cost-of-living allowances, hazardous duty pay, commissions, production bonuses and tips; it excludes overtime, shift differentials, non-production bonuses and employer benefits. The hourly and annual wages for this occupation are statistical estimates, and conversion at 2080 hours does not equal an individual's actual hours or total annual income.
US occupational scope | the wages on this page are SOC19-4092; medical laboratory technicians 29-2012, technologists 29-2011 and law enforcement positions are classified separately. Although O*NET police identification personnel 33-3021.02 overlap in tasks with this occupation, the statistical wages still cannot be interchanged.
Interest and personality data are for self-questioning only and do not constitute recruitment or performance conclusions.
Common materials: sampling and packaging and preservation containers and seals, reference materials and reagents and kits, examination controls and consumables, and disinfection and cleaning supplies.
Method selection and result determination are subject to the valid version of the procedures and standards.
90 minute allocation: 15 minutes input checks, 20 minutes list and handover, 20 minutes arithmetic quality control, 20 minutes report correction, 10 minutes anomaly escalation, 5 minutes self-check. This practises records only, not real examination or forensic sign-off.
Reference answer | the E02 seal is damaged and the 09:40 recipient is unknown, so record the anomaly and pause reporting a definite result in this exercise, retain the original entries and report to the fictional supervisor for checking; batch B blank 0.030 > 0.020, which fails. A passing standard does not offset a failed blank; even if the two readings are close, it cannot be released.
Old report correction | 'both valid', 'handover complete' and 'matches source X' do not hold. Change to: E01 completed the simulated arithmetic check, and E02 awaits review because of the chain and blank anomalies; no comparison sample for X was provided, so a match, common source or guilt cannot be determined. The correction retains the old values, the reason, the time and the review role.
Self-check marking (editorial rules, 20 points) | input list and handover 6 points, mean and relative difference 4 points, identifying the blank and seal anomalies 4 points, three corrections to the old report 4 points, and making the fiction and authority clear 2 points. If you miss the E02 suspension, add fabricated signatures or infer a source from the readings, rework it first; the score is not an occupational qualification or recruitment threshold.
Use only the paper materials in this task; do not collect human materials, handle hazardous reagents or weapons, or import real cases or external services. The work can only show that one learning exercise was completed and cannot be written up as casework, certification or laboratory experience.
| Practical work or trial work and assessment | Complete collection and sealing and records and basic examination to procedure and identify anomalies | Practical records, control and quality control records, anomaly handling records | Passing the assessment does not equal obtaining examiner status or institutional authorisation |
|---|
| Onboarding and probation period | Comply with biological and chemical and information security and record procedures and report anomalies | Examination and safety and handover records, anomaly reporting and rectification records | Suitability and authorisation are subject to institutional assessment and qualification recognition |
|---|
The answer is no; record that this is a self-check without external review and do not fabricate feedback.
Deliver the next step courses, qualification conditions and verification targets; seven days does not mean you can handle cases independently.
| On-the-job training (United States) | New hires | Becoming familiar with the institution's methods and records | Listed by the OOH as common preparation | Institutional supervision and assessment | The OOH states that specialist training is usually less than one year and varies by position | Do not extrapolate that duration to China |
|---|
| Laboratory biological and chemical safety training | Those in contact with biological and chemical materials | Reduces exposure and accident risk and meets safety requirements | Verify by duty and institutional requirements | Attend biosafety and chemical safety training and follow the procedures | Verify against the actual training or assessment arrangements | Cannot replace on-site safety responsibility |
|---|
| Specialist direction training (ballistics, fingerprints, DNA, toxicology or digital forensics) | Those carrying out specialist examination | Supports the examination and review and testimony for specific exhibits | Verify by duty and institutional requirements | Attend institutional or accreditation body training and assessment | Verify against the actual training or assessment arrangements | Cannot replace proficiency examinations and institutional authorisation |
|---|
| Proficiency assessment or institutional approval | Those carrying cases independently | Independent cases may require a proficiency examination or institutional accreditation | Verify by duty and institutional requirements | Pass the assessment per state or institution and accreditation body requirements | Verify against the actual training or assessment arrangements | Not a substitute for Chinese forensic examiner registration |
|---|
| Information security and confidentiality training | Those in contact with case and personal information | Reduces case information leakage and unauthorised access risk | Verify by duty and institutional requirements | Attend institutional confidentiality and information security training | Verify against the actual training or assessment arrangements | Cannot replace the institution's confidentiality and compliance responsibility |
|---|
Usage boundary | this page is a verification direction and does not provide individual entry, medical examination, recruitment or pay conclusions.
Readiness evidence：Validation and quality control and deviation rectification records.
Credential boundary：Quality and statistics training; institutional authorisation.
Next moves：Masters validation and quality control and deviation and corrective action methods.
Typical scope：Responsible for method validity and the quality system and accreditation and training and information compliance, coordinating internal and external audits and disputes.
Readiness evidence：Quality and accreditation conclusions; audit and rectification and training documents.
Credential boundary：The corresponding management seniority or institutional appointment.
Next moves：Improves the quality system and accreditation and information security and training mechanisms.
Readiness evidence：Training and assessment records; changes in skills and errors.
Credential boundary：Training and assessment position training; institutional authorisation.
Next moves：Compiles the method and case and error library and improves the training and assessment standards.
Typical scope：Responsible for the technical route and information security and databases and external collaboration, coordinating multiple parties and handling disputes per regulations and procedures.
Readiness evidence：Technical and information management conclusions; policy and training documents.
Credential boundary：The corresponding management seniority or institutional appointment.
Next moves：Improves the technical planning and information security and collaboration and emergency mechanisms.
