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Detective / Criminal Investigator

Public Safety

You'll investigate crimes after the patrol officers leave the scene. Interviewing witnesses, processing evidence, building cases, and working with prosecutors to put it all together. It's nothing like TV — there's way more paperwork, way less dramatic music, and cases take months, not 42 minutes. But cracking one that's gone cold? There's no better feeling in law enforcement.

Salary Range

Low

$52k

Median

$91k

High

$130k

10-Year Growth

3%

US Workers

116K

Education

Police academy + 3-5 years patrol experience (bachelor's degree increasingly preferred)

Environment

mixed

Tools & Technical Skills

  • Criminal investigation procedures
  • Interview & interrogation techniques
  • Evidence collection & chain of custody
  • Law enforcement databases (NCIC, CJIS, AFIS)
  • Surveillance equipment & techniques
  • Report writing & case documentation
  • Digital forensics basics

People & Mindset Skills

  • Critical thinking
  • Attention to detail
  • Communication
  • Persistence
  • Emotional intelligence
  • Integrity
  • Interviewing skills

Learn the skills

Courses and certifications to get you job-ready

Law enforcement databases (NCIC, CJIS, AFIS)

What you'll actually do

  • 01Interview witnesses, victims, and suspects
  • 02Process and analyze physical and digital evidence
  • 03Write detailed investigative reports and case files
  • 04Sit in a car for 6 hours on surveillance eating cold coffee and gas station snacks
  • 05Coordinate with forensic labs and other agencies
  • 06Testify in court as the investigating officer
  • 07Follow up on leads that mostly go nowhere (but sometimes don't)