Criminal Investigator

Job Summary

Responsible for investigating crimes such as burglaries, homicides, assaults, and other incidents to implicate perpetrators. Collects evidence, interviews witnesses, and testifies in court.

Primary responsibilities

  • Investigate criminal acts such as homicides, sexual assaults, armed robberies, home invasions, and property crimes such as burglaries.
  • Collect and use forensic evidence to solve crimes.
  • Interview informants, suspects, and witnesses to ascertain alibis, clues, time frames, and possible suspects.
  • Keep detailed records.
  • Bag evidence carefully and ensure it gets sent to proper department.
  • Send specimens to laboratory to obtain DNA.
  • Run fingerprints through database to obtain matches.
  • Collect enough evidence to support a court case against a criminal.
  • Process crime scenes.
  • Request additional police assistance.
  • File paperwork.
  • Follow up on leads.
  • Prepare investigative reports.
  • Attend autopsies and make notes.
  • Prepare sketches and diagrams.
  • Explain to the jury the significance of evidence as it relates to proof.
  • Maintain an in-depth knowledge of federal and state statutes and court cases related to work performed and agency rules and regulations.
  • Obtain search warrants.
  • Perform surveillance and monitor suspects.
  • Analyze laboratory findings.
  • Exchange information and coordinate activities with other departments.
  • Record physical information about suspects.
  • Take fingerprints at crime scene.

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