Private investigator services in Montana are governed by the MCA § 37-60-101 et seq. (Private Security Guards and Investigators) and regulated by the Montana Board of Private Security (Department of Labor and Industry). A state-level license is required to operate as a private investigator for compensation in Montana.
Quick Facts: Montana PI Licensing
| License required | Yes |
| Licensing authority | Montana Board of Private Security (Department of Labor and Industry) |
| Governing statute | MCA § 37-60-101 et seq. (Private Security Guards and Investigators) |
| Official license lookup | https://ebiz.mt.gov/POL/ |
| Authority website | https://boards.bsd.dli.mt.gov/private-security/ |
| Last reviewed | 2026-05-17 |
Verifying a PI's License in Montana
Before retaining any private investigator in Montana, verify the individual’s license is active and in good standing. The Montana Board of Private Security (Department of Labor and Industry) maintains a public license search at https://ebiz.mt.gov/POL/. Search by the individual’s name or company name; the record will show the license number, status, and any disciplinary history on file.
What This Means for Hiring
Montana’s licensing requirement means the investigator you hire has, at minimum, completed the state’s training and background screening process. It does not guarantee competence on your specific case — surveillance, family-court, corporate, and skip-trace work each demand specialized experience. When evaluating a Montana PI, ask about case-type specialization, evidentiary chain-of-custody process, and prior testimony in the jurisdiction where your matter is pending.
Reference: All 50 States + DC
For licensing requirements in other jurisdictions, see the full PI licensing reference map.