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Detectives and Criminal Investigators

Conduct investigations related to suspected violations of federal, state, or local laws to prevent or solve crimes.

Tasks
30 tasks30 core
Family
Protective ServiceOne of its 28 occupations
Code
33-3021.00SOC 2018: 33-3021

Read the 30 tasks Download this record as JSON

What the work is made of

All 30 are core tasks, each quoted as published, with the survey it came from.

Core: central to the job

  1. Task 1. Check victims for signs of life, such as breathing and pulse.Core taskTask 23021Rated by 159 people who do the job, August 2022
  2. Task 2. Obtain facts or statements from complainants, witnesses, and accused persons and record interviews, using recording device.Core taskTask 23022Rated by 155 people who do the job, August 2022
  3. Task 3. Secure deceased body and obtain evidence from it, preventing bystanders from tampering with it prior to medical examiner's arrival.Core taskTask 23023Rated by 153 people who do the job, August 2022
  4. Task 4. Record progress of investigation, maintain informational files on suspects, and submit reports to commanding officer or magistrate to authorize warrants.Core taskTask 23024Rated by 154 people who do the job, August 2022
  5. Task 5. Prepare reports that detail investigation findings.Core taskTask 23029Rated by 87 people who do the job, August 2022
  6. Task 6. Prepare charges or responses to charges, or information for court cases, according to formalized procedures.Core taskTask 23025Rated by 154 people who do the job, August 2022
  7. Task 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.Core taskTask 23026Rated by 158 people who do the job, August 2022
  8. Task 8. Obtain summary of incident from officer in charge at crime scene, taking care to avoid disturbing evidence.Core taskTask 23027Rated by 155 people who do the job, August 2022
  9. Task 9. Note, mark, and photograph location of objects found, such as footprints, tire tracks, bullets and bloodstains, and take measurements of the scene.Core taskTask 23028Rated by 155 people who do the job, August 2022
  10. Task 10. Examine records and governmental agency files to find identifying data about suspects.Core taskTask 23030Rated by 154 people who do the job, August 2022
  11. Task 11. Secure persons at scene, keeping witnesses from conversing or leaving the scene before investigators arrive.Core taskTask 23031Rated by 155 people who do the job, August 2022
  12. Task 12. Provide information to lab personnel concerning the source of an item of evidence and tests to be performed.Core taskTask 23032Rated by 153 people who do the job, August 2022
  13. Task 13. Analyze completed police reports to determine what additional information and investigative work is needed.Core taskTask 23033Rated by 155 people who do the job, August 2022
  14. Task 14. Examine records to locate links in chains of evidence or information.Core taskTask 23050Rated by 86 people who do the job, August 2022
  15. Task 15. Search for and collect evidence, such as fingerprints, using investigative equipment.Core taskTask 23045Rated by 87 people who do the job, August 2022
  16. Task 16. Prepare and serve search and arrest warrants.Core taskTask 23035Rated by 155 people who do the job, August 2022
  17. Task 17. Question individuals or observe persons and establishments to confirm information given to patrol officers.Core taskTask 23036Rated by 153 people who do the job, August 2022
  18. Task 18. Determine scope, timing, and direction of investigations.Core taskTask 23046Rated by 86 people who do the job, August 2022
  19. Task 19. Obtain and verify evidence by interviewing and observing suspects and witnesses or by analyzing records.Core taskTask 23034Rated by 87 people who do the job, August 2022
  20. Task 20. Participate or assist in raids and arrests.Core taskTask 23038Rated by 155 people who do the job, August 2022
  21. Task 21. Organize scene search, assigning specific tasks and areas of search to individual officers and obtaining adequate lighting as necessary.Core taskTask 23039Rated by 155 people who do the job, August 2022
  22. Task 22. Summon medical help for injured individuals and alert medical personnel to take statements from them.Core taskTask 23040Rated by 154 people who do the job, August 2022
  23. Task 23. Notify command of situation and request assistance.Core taskTask 23041Rated by 155 people who do the job, August 2022
  24. Task 24. Block or rope off scene and check perimeter to ensure that entire scene is secured.Core taskTask 23043Rated by 159 people who do the job, August 2022
  25. Task 25. Identify case issues and evidence needed, based on analysis of charges, complaints, or allegations of law violations.Core taskTask 23037Rated by 87 people who do the job, August 2022
  26. Task 26. Notify, or request notification of, medical examiner or district attorney representative.Core taskTask 23044Rated by 158 people who do the job, August 2022
  27. Task 27. Collaborate with other offices and agencies to exchange information and coordinate activities.Core taskTask 23048Rated by 86 people who do the job, August 2022
  28. Task 28. Maintain surveillance of establishments to obtain identifying information on suspects.Core taskTask 23047Rated by 155 people who do the job, August 2022
  29. Task 29. Testify before grand juries concerning criminal activity investigations.Core taskTask 23042Rated by 87 people who do the job, August 2022
  30. Task 30. Perform undercover assignments and maintain surveillance, including monitoring authorized wiretaps.Core taskTask 23049Rated by 87 people who do the job, August 2022

Where this comes from

Quoted from the U.S. Department of Labor, and credited. Nothing on this page is written by us.

How we copy and credit sources
  1. Published by
    O*NET 29.0, U.S. Department of LaborEmployment and Training Administration
  2. Classification
    Standard Occupational Classification 2018, 33-3021
  3. License
    CC BY 4.0Free to copy and reuse, with credit
  4. Changed by us
    Nothing.

More in Protective Service

27 other occupations in this family, each with its own page.

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