Private investigator services in Pennsylvania are governed by the 22 P.S. § 11 et seq. (Private Detective Act of 1953) and regulated by the Court of Common Pleas of each Pennsylvania county (no central state authority). A state-level license is required to operate as a private investigator for compensation in Pennsylvania.
Note: Pennsylvania is unique: PI licensing is administered at the county level by the Court of Common Pleas, not by a central state agency. There is no statewide license lookup; verify a PI through the county court that issued the license.
Quick Facts: Pennsylvania PI Licensing
| License required | Yes |
| Licensing authority | Court of Common Pleas of each Pennsylvania county (no central state authority) |
| Governing statute | 22 P.S. § 11 et seq. (Private Detective Act of 1953) |
| Official license lookup | No central state lookup — verify via the issuing authority below |
| Authority website | https://www.pacourts.us/courts/courts-of-common-pleas |
| Last reviewed | 2026-05-17 |
Verifying a PI's License in Pennsylvania
Before retaining any private investigator in Pennsylvania, verify the individual’s license is active and in good standing. Verification is handled by the Court of Common Pleas of each Pennsylvania county (no central state authority) — see the authority website above for the verification procedure that applies to your case.
What This Means for Hiring
Pennsylvania’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 Pennsylvania 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.