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Detectives and Criminal Investigators

SOC 33-3021.00Job Zone 3 · Medium Preparationv.26.05

Context coveredThis framework covers sworn detective and criminal investigator practice across crime scene response, evidence handling, witness interviewing, report preparation, court documentation, and investigative leadership in law enforcement agency environments.

Sources:O*NET v30.2O*NET Resource Center — Occupational Information Network, v30.2 (Sept 2025). Opens in new tab.SkillsCrosswalkSkillsCrosswalk — O*NET enrichment + adjacency index. Opens in new tab.
Emerging
Entry / Apprentice
  1. Victim condition assessment — check for signs of life such as breathing and pulse under direct supervision at an initial crime scene response.
  2. Witness statements — record basic facts and accounts from complainants using a department-issued recording device while accompanied by a senior investigator.
  3. Crime scene perimeter — assist in securing a deceased body and surrounding area to prevent bystander tampering prior to the medical examiner's arrival.
  4. Incident summary — receive and document a verbal briefing from the officer in charge at a crime scene while following strict protocols to avoid disturbing evidence.
  5. Evidence containers — place collected items of evidence into proper labeled containers under direct guidance at a controlled crime scene.
  6. Investigation notes — maintain basic informational entries on suspects in a department case file using office suite software under supervisor review.
  7. Preliminary reports — draft initial written summaries of investigation findings using standardized templates and submit for supervisory correction.
  8. Legal procedures — identify the correct formalized procedures for preparing charges or responses to charges with guidance from a senior investigator.
  9. Active listening — apply foundational listening techniques during witness interviews to capture accurate information in a law enforcement setting.
  10. Case management software — enter case data into database user interface and query software under instruction to support active investigation tracking.
Developing
Mid-level / Established
  1. Vital signs evaluation — assess victims for signs of life and relay findings to responding medical personnel and supervisors at multi-unit crime scenes.
  2. Recorded interviews — independently conduct and record interviews with complainants, witnesses, and accused persons using department-approved recording devices.
  3. Body and evidence security — secure a deceased body and associated physical evidence, managing bystanders and coordinating with the medical examiner's office upon arrival.
  4. Suspect file maintenance — maintain and update informational files on suspects and record investigation progress using project management software with reduced oversight.
  5. Investigation reports — prepare detailed written reports of investigation findings that meet departmental standards for clarity, accuracy, and legal sufficiency.
  6. Warrant documentation — compile and submit reports to a commanding officer or magistrate to support authorization of search or arrest warrants.
  7. Evidence preservation — preserve, process, and catalog items of evidence from crime scenes using correct chain-of-custody procedures in a field and laboratory setting.
  8. Scene briefing integration — obtain and synthesize incident summaries from officers in charge at crime scenes, identifying key facts while protecting evidence integrity.
  9. Inductive reasoning — analyze patterns across witness accounts and physical evidence to develop investigative leads in routine criminal cases.
  10. Interagency coordination — coordinate scheduling and information sharing with other units or agencies using electronic mail software and office suite tools.
Proficient
Senior / Expert IC
  1. Complex victim assessment — evaluate victim condition, document medical status, and direct initial scene response activities autonomously across multi-victim or ambiguous crime scenes.
  2. Multi-party interview management — independently plan and conduct structured interviews with complainants, witnesses, and accused persons, applying social perceptiveness and persuasion techniques to elicit reliable statements.
  3. Scene integrity management — lead the full securing of a crime scene including body preservation, evidence protection, and coordination with the medical examiner without supervisory oversight.
  4. Investigative file systems — design and maintain comprehensive suspect and case files across long-term investigations using database query software and geographic information systems.
  5. Court-ready reporting — author thorough investigative reports and prepare charges or formal legal responses according to established procedures for submission in criminal court proceedings.
  6. Evidence chain of custody — independently oversee the full lifecycle of evidence — from collection and analysis to destruction of unneeded items — ensuring legal admissibility in a courtroom environment.
  7. Analytical software application — apply analytical or scientific software to synthesize crime scene data, behavioral patterns, and investigative leads in complex or non-routine criminal cases.
  8. Deductive case strategy — apply deductive reasoning across full case files to prioritize suspects, eliminate false leads, and recommend investigative direction to supervisory personnel.
  9. Critical incident judgment — exercise autonomous judgment and decision making under stress in rapidly evolving field situations involving public safety and legal implications.
  10. Community intelligence — leverage service orientation and psychological knowledge to cultivate informant networks and gather intelligence within diverse community environments.
Advanced
Lead / Principal / Executive
  1. Investigative unit leadership — direct the full operational strategy of a detective unit, setting investigative priorities and allocating resources across concurrent complex criminal cases.
  2. Policy and protocol development — develop and institutionalize interview, evidence-handling, and reporting protocols that align with current law and government standards across the organization.
  3. Mentor and training oversight — coach and evaluate junior investigators in field techniques, report writing, and legal compliance, accelerating their progression from emerging to proficient performance.
  4. High-stakes court coordination — lead the preparation of charges, legal responses, and expert testimony strategies for high-profile or complex prosecutions in collaboration with legal counsel.
  5. Cross-agency intelligence strategy — establish information-sharing frameworks and joint investigative task forces with federal, state, and local agencies using GIS and network monitoring tools.
  6. Organizational performance monitoring — monitor unit-level investigation outcomes, clearance rates, and compliance metrics, reporting findings to command leadership and recommending systemic improvements.
  7. Executive-level judgment — exercise final-authority judgment on legally sensitive decisions — including warrant applications and evidence destruction — with full accountability for organizational and legal outcomes.
  8. Technology integration leadership — evaluate and deploy emerging investigative technologies such as analytical software, photo imaging tools, and mapping platforms to modernize departmental investigative capacity.
  9. Public safety policy influence — represent the investigative function in intergovernmental forums, contributing expertise to shape public safety and security policy at the organizational or jurisdictional level.
  10. Organizational integrity stewardship — model and enforce standards of integrity, cautiousness, and ethical conduct across the investigative division, establishing a culture of dependability and professional accountability.

AI-at-Work Competency Framework

Sources:Anthropic Economic IndexAnthropic Economic Index — release_2026_03_24. Opens in new tab.Jadhav & Danve, 2026Skill Automation Feasibility Index — Jadhav & Danve, 2026 (arXiv:2604.06906). Opens in new tab.WEF Skills TaxonomyWEF Skills Taxonomy 2021 — Building a Common Language for Skills at Work. Opens in new tab.

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Sources:Pathsmith™ Durable SkillsPathsmith™ Durable Skills Framework — America Succeeds + CompTIA. Opens in new tab.O*NET v30.2O*NET Resource Center — Occupational Information Network, v30.2 (Sept 2025). Opens in new tab.
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Show O*NET source anchors60 anchors · skillscrosswalk.com

O*NET enrichment · skillscrosswalk.com

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Source anchors that ground each statement

Related titles
Air Marshal · Burglary Investigator · Child Support Agent · Child Support Investigator · Child Support Officer · CIA Agent (Central Intelligence Agency Agent) · City Detective · Counter Intelligence Agent · Crime Analyst · Crime Investigator Special Agent · Crime Scene Investigator (CSI) · Criminal Analyst
RAPIDS apprenticeships
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O*NET skills
Active ListeningSpeakingCritical ThinkingSocial PerceptivenessReading ComprehensionComplex Problem SolvingJudgment and Decision MakingCoordinationService OrientationActive LearningMonitoringWritingPersuasionNegotiationTime Management
Knowledge domains
Law and GovernmentPublic Safety and SecurityEnglish LanguageCustomer and Personal ServicePsychologyComputers and ElectronicsEducation and TrainingAdministrativeAdministration and ManagementCommunications and MediaSociology and Anthropology
Abilities
Oral ComprehensionInductive ReasoningOral ExpressionDeductive ReasoningProblem SensitivityWritten ComprehensionInformation OrderingNear VisionSpeech RecognitionSpeech Clarity
Work styles
Stress ToleranceDependabilityIntegrityAttention to DetailCautiousnessPerseverance
Technology
Network monitoring softwareGraphics or photo imaging softwareProject management softwareOffice suite softwareMap creation softwareData base user interface and query softwareElectronic mail softwareGeographic information systemAnalytical or scientific softwareOperating system software
Tasks · seed anchors for statements
  1. Check victims for signs of life, such as breathing and pulse.
  2. Obtain facts or statements from complainants, witnesses, and accused persons and record interviews, using recording device.
  3. Secure deceased body and obtain evidence from it, preventing bystanders from tampering with it prior to medical examiner's arrival.
  4. Record progress of investigation, maintain informational files on suspects, and submit reports to commanding officer or magistrate to authorize warrants.
  5. Prepare reports that detail investigation findings.
  6. Prepare charges or responses to charges, or information for court cases, according to formalized procedures.
  7. Preserve, process, and analyze items of evidence obtained from crime scenes and suspects, placing them in proper containers and destroying evidence no longer needed.
  8. Obtain summary of incident from officer in charge at crime scene, taking care to avoid disturbing evidence.
CIP education codes
03.020829.020343.010043.010743.011443.011543.012143.012243.012343.040243.040343.040543.040743.0408

Sources: O*NET v30.2 (CC BY 4.0), SkillsCrosswalk.com, LER.me®, Anthropic Economic Index, SAFI (Jadhav & Danve, 2026), WEF Skills Taxonomy 2021, Pathsmith™ Durable Skills Framework. © 2026 EBSCOed.