Private detectives and investigators gather, analyze and report information to clients about legal or personal matters. They run background checks, look into fraud, find people and support lawyers with cases. AI tools can search and sort large amounts of information fast. Fieldwork, interviews and standing behind findings stay with the investigator.
The short answer: AI speeds up searching, but the BLS still expects growth. The ILO's 2025 index rates legal and related associate professionals, the closest group, at gradient 1 with a score of 0.39. The US Bureau of Labor Statistics projects 5 percent growth for private detectives and investigators from 2025 to 2035, faster than average, with about 3,200 openings a year. Projections are estimates, not guarantees.
How exposed private investigators are
The International Labour Organization scores occupations' tasks from 0 (cannot be automated with generative AI) to 1 (could be done without a human operator), and groups them into gradients from 1 to 4, with 4 the most exposed; below them sit minimal exposure and not exposed (ILO Working Paper 140, 2025).
| Occupation (ISCO-08) | ILO category | Mean task score (0 to 1) |
|---|---|---|
| Legal and Related Associate Professionals | Gradient 1 | 0.39 |
The ILO scores groups of occupations, so this is the closest group for private detectives and investigators, not a score for the job title itself.
What the BLS projects
| Occupation | Projected change 2025 to 2035 | Openings a year |
|---|---|---|
| Private detectives and investigators | Grow 5% | About 3,200 |
The BLS expects lawsuits, fraud and other crimes, and interpersonal mistrust to create demand for investigative services. It adds that background checks will remain a source of work because online investigations are not always sufficient. Its outlook does not mention AI.
Where AI is helping
- Searching and sorting records, documents and public posts.
- Summarizing long files and transcripts.
- Drafting first versions of client reports.
What stays with private investigators
- Fieldwork: surveillance, site visits and serving as a witness.
- Interviews: talking to people and judging what they say.
- Staying within the law: privacy and licensing rules for how information is gathered.
- Checking AI help: generated facts about people can be wrong or mixed up, which NIST calls confabulation (NIST AI 600-1). See checking AI output.
How the job is changing
Finding information online gets faster, so more of the value is in confirming it, gathering what is not online and reporting findings that hold up. This page is general information, not career advice.
See also will AI replace paralegals?, will AI replace security guards? and will AI replace forensic science technicians?
Pay and how to get in
The US Bureau of Labor Statistics puts the median annual pay for private detectives and investigators at $51,220 in May 2025, against $50,980 for all workers. The typical education needed to enter is: high school diploma or equivalent. See how this job compares in AI exposure by pay and AI exposure by education level.
Questions and answers
Will AI replace private investigators?
Not on current projections. The BLS projects 5 percent growth for private detectives and investigators from 2025 to 2035.
How exposed are private investigators to AI?
The ILO rates legal and related associate professionals, the closest group, at gradient 1 with a score of 0.39.
How many openings are expected?
About 3,200 a year on average over the decade, according to the BLS.
Are online searches replacing investigators?
The BLS says background checks will remain a source of work because online investigations are not always sufficient.