Protective Service
Detectives and Criminal Investigators
Conduct investigations related to suspected violations of federal, state, or local laws to prevent or solve crimes.
Also called: Criminal Investigator, CSI (Crime Scene Investigator), Detective, Fugitive Detective, Fugitive Investigator, Investigator
- Median pay in Greater Boston
- $110,150
- $52.96/hr
- Jobs in Greater Boston
- 1,110
- Massachusetts 2024–2034
- +3.1%
- 70 openings a year
- Typical U.S. entry requirement
- High school diploma or equivalent
- plus Moderate-term on-the-job training; Less than 5 years of related work experience
Greater Boston: Boston-Cambridge-Newton, MA-NH metro area, May 2025. Growth and openings: Massachusetts statewide projection.
Pay range in Greater Boston
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| $77,110 | $94,290 | $110,150 | $149,180 | $184,000 |
10% of workers earn less than the first figure and 10% earn more than the last.
What you’d do
- Prepare reports that detail investigation findings.
- Obtain and verify evidence by interviewing and observing suspects and witnesses or by analyzing records.
- Preserve, process, and analyze items of evidence obtained from crime scenes and suspects, placing them in proper containers and destroying evidence no longer needed.
- Obtain facts or statements from complainants, witnesses, and accused persons and record interviews, using recording device.
- Record progress of investigation, maintain informational files on suspects, and submit reports to commanding officer or magistrate to authorize warrants.
- Analyze completed police reports to determine what additional information and investigative work is needed.
AI and this job
AI exposure: how much of this job’s work AI tools can do or help with, based on national research. It is not a forecast of job loss.
Moderate exposure53 of 100
The index averages three national research measures, each shown as a percentile of all jobs:
- AIOE 52
- Language-model AIOE 51
- GPTs-are-GPTs 57
Observed AI use today: Some (Anthropic Economic Index)
AI exposure for this job is moderate, and some AI use has been seen. AI tools can help with writing reports, searching records, and keeping case files organized. They do not replace interviewing people, handling evidence at a crime scene, or the judgment needed to build a case.
Likely to change
- Writing investigation reports
- Searching and analyzing records
Still relies on people
- Interviewing witnesses and suspects face to face
- Collecting evidence at crime scenes
Written with AI from the data on this page. Check with a career coach before making a decision.
Next steps from here
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Careful attention to safety and procedure carries over. This job has a similar Boston median pay ($111,490), strong projected growth of 13.3%, and long-term on-the-job training.
- Pay difference
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- AI exposure
- Lower
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- To get started
- High school diploma or equivalent
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- To get started
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Training near Boston
College and school programs in the Boston metro area that lead to this job, with 2023-24 completions (IPEDS).
4 programs near Boston (plus 2 graduate)
Bunker Hill Community College (school website, opens in a new tab)
Boston, MA · 1.2 mi from City Hall
Criminal Justice/Police Science · Associate degree
49 completed in 2023-24
Northern Essex Community College (school website, opens in a new tab)
Haverhill, MA · 30.1 mi from City Hall
Criminal Justice/Police Science · Certificate (12 weeks to 1 year)
13 completed in 2023-24
Massasoit Community College (school website, opens in a new tab)
Brockton, MA · 20.0 mi from City Hall
Criminal Justice/Police Science · Associate degree
38 completed in 2023-24
Northern Essex Community College (school website, opens in a new tab)
Haverhill, MA · 30.1 mi from City Hall
Criminal Justice/Police Science · Associate degree
21 completed in 2023-24
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Talk to a career coach
A coach at the Office of Workforce Development can help you plan your next step, and connect you with training, apprenticeships and City partner programs that are not listed here.
Talk to a career coach