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Police Detectives - 33-3021.01

O*NET-SOC Description

Conduct investigations to prevent crimes or solve criminal cases.

Sample of Reported Job Titles

  • Agent
  • Criminal Investigator
  • Detective
  • Detective Sergeant
  • Fugitive Detective
  • Fugitive Investigator
  • Investigator
  • Narcotics Detective
  • Narcotics Investigator
  • Police Detective

SOC Occupation Groups

Related Occupations


  • Analyze completed police reports to determine what additional information and investigative work is needed.
  • Block or rope off scene and check perimeter to ensure that entire scene is secured.
  • Check victims for signs of life, such as breathing and pulse.
  • Coordinate with outside agencies and serve on interagency task forces to combat specific types of crime.
  • Examine crime scenes to obtain clues and evidence, such as loose hairs, fibers, clothing, or weapons.
  • Examine records and governmental agency files to find identifying data about suspects.
  • Maintain surveillance of establishments to obtain identifying information on suspects.
  • Monitor conditions of victims who are unconscious so that arrangements can be made to take statements if consciousness is regained.
  • Note relevant details upon arrival at scene, such as time of day and weather conditions.
  • Note, mark, and photograph location of objects found, such as footprints, tire tracks, bullets and bloodstains, and take measurements of the scene.
  • Notify command of situation and request assistance.
  • Notify, or request notification of, medical examiner or district attorney representative.
  • Observe and photograph narcotic purchase transactions to compile evidence and protect undercover investigators.
  • Obtain evidence from suspects.
  • Obtain facts or statements from complainants, witnesses, and accused persons and record interviews, using recording device.
  • Obtain summary of incident from officer in charge at crime scene, taking care to avoid disturbing evidence.
  • Organize scene search, assigning specific tasks and areas of search to individual officers and obtaining adequate lighting as necessary.
  • Participate or assist in raids and arrests.
  • Prepare and serve search and arrest warrants.
  • Prepare charges or responses to charges, or information for court cases, according to formalized procedures.
  • Preserve, process, and analyze items of evidence obtained from crime scenes and suspects, placing them in proper containers and destroying evidence no longer needed.
  • Provide information to lab personnel concerning the source of an item of evidence and tests to be performed.
  • Provide testimony as a witness in court.
  • Question individuals or observe persons and establishments to confirm information given to patrol officers.
  • Record progress of investigation, maintain informational files on suspects, and submit reports to commanding officer or magistrate to authorize warrants.
  • Schedule polygraph tests for consenting parties and record results of test interpretations for presentation with findings.
  • Secure deceased body and obtain evidence from it, preventing bystanders from tampering with it prior to medical examiner's arrival.
  • Secure persons at scene, keeping witnesses from conversing or leaving the scene before investigators arrive.
  • Summon medical help for injured individuals and alert medical personnel to take statements from them.
  • Take photographs from all angles of relevant parts of a crime scene, including entrance and exit routes and streets and intersections.
  • Videotape scenes where possible, including collection of evidence, examination of victim at scene, and defendants and witnesses.

Detailed Work Activities

  • Analyze crime scene evidence.
  • Apprehend criminal suspects.
  • Block physical access to restricted areas.
  • Check physical condition of people or animals.
  • Collaborate with law enforcement or security agencies to share information.
  • Collaborate with outside groups to develop programs or projects.
  • Communicate situation details to appropriate personnel.
  • Detain suspects or witnesses.
  • Direct criminal investigations.
  • Document legal or regulatory information.
  • Examine crime scenes to obtain evidence.
  • Examine records or other types of data to investigate criminal activities.
  • Interview people to gather information about criminal activities.
  • Maintain surveillance of individuals or establishments.
  • Observe individuals' activities to gather information or compile evidence.
  • Prepare investigation or incident reports.
  • Prevent unauthorized individuals from entering restricted areas.
  • Process forensic or legal evidence in accordance with procedures.
  • Record crime or accident scene evidence with video or still cameras.
  • Record information about environmental conditions.
  • Record information about suspects or criminals.
  • Request emergency personnel.
  • Serve court ordered documents.
  • Testify at legal or legislative proceedings.
  • Use databases to locate investigation details or other information.

Military Crosswalk Titles

  • Area Intelligence Technician (Army - Warrant Officer only)
  • Chief Counterintelligence/Human Intelligence Sergeant (Army - Enlisted)
  • CID Special Agent (Army - Enlisted)
  • CID Special Agent (Army - Warrant Officer only)
  • Counter Intelligence Agent (Army - Enlisted)
  • Counter-Intelligence Technician (Army - Warrant Officer only)
  • Counterintelligence/Human Intelligence (CI/HUMINT) Specialist (Marine Corps - Enlisted)
  • Criminal Investigator CID Agent (Marine Corps - Enlisted)
  • Cryptologic Linguist (Army - Enlisted)
  • CWO - Security (Navy - Warrant Officer only)
  • GWOT IA/ILO Detainee Operations Interrogator (Navy - Enlisted)
  • Human Intelligence Collection Technician (Army - Warrant Officer only)
  • Human Intelligence Collector (Army - Enlisted)
  • Human Intelligence Specialist (Air Force - Enlisted)
  • Human Intelligence Specialist Apprentice (Air Force - Enlisted)
  • Human Intelligence Specialist Craftsman (Air Force - Enlisted)
  • Human Intelligence Specialist Helper (Air Force - Enlisted)
  • Human Intelligence Specialist Superintendent (Air Force - Enlisted)
  • Independent Duty Master-at-Arms (Navy - Enlisted)
  • Investigator-Protective Service Specialist (Navy - Enlisted)
  • LDO - Security (Navy - Commissioned Officer only)
  • Master-At-Arms (Navy - Enlisted)
  • Military Investigator (Navy - Enlisted)
  • Military Police (Army - Enlisted)
  • Military Police Law Enforcement Advisor (MPLEA) (Marine Corps - Enlisted)
  • Security Forces (Air Force - Enlisted)
  • Security Forces Apprentice (Air Force - Enlisted)
  • Security Forces Apprentice, Combat Arms (Air Force - Enlisted)
  • Security Forces Apprentice, Military Working Dog Handler (Air Force - Enlisted)
  • Security Forces Craftsman (Air Force - Enlisted)
  • Security Forces Helper (Air Force - Enlisted)
  • Security Forces Helper, Combat Arms (Air Force - Enlisted)
  • Security Forces Helper, Military Working Dog Handler (Air Force - Enlisted)
  • Security Forces Journeyman (Air Force - Enlisted)
  • Security Forces Journeyman, Combat Arms (Air Force - Enlisted)
  • Security Forces Journeyman, Military Working Dog Handler (Air Force - Enlisted)
  • Security Forces Superintendent (Air Force - Enlisted)
  • Signals Intelligence (SIGINT) Senior Sergeant/SIGINT Chief (Army - Enlisted)
  • Signals Intelligence Analyst (Army - Enlisted)
  • Special Forces Assistant Operations and Intelligence Sergeant (Army - Enlisted)
  • Special Forces Weapons Sergeant (Army - Enlisted)
  • Special Investigations (Air Force - Enlisted)
  • Special Investigations Craftsman (Air Force - Enlisted)
  • Special Investigations Helper (Air Force - Enlisted)
  • Special Investigations Journeyman (Air Force - Enlisted)
  • Special Investigations Superintendent (Air Force - Enlisted)

Apprenticeship Crosswalk Titles

No information available.

DOT Crosswalk Titles

  • Detective
  • Detective, Narcotics and Vice
  • Investigator, Internal Affairs
  • Investigator, Narcotics
  • Investigator, Vice