Pennsylvania Private Security and Private Investigation Licensing Guide

Pennsylvania licenses private detectives and private detective agencies under the Private Detective Act of 1953 (22 P.S. § 11 et seq.) and regulates armed security under the Lethal Weapons Training Act (22 Pa.C.S. § 501 et seq.).

Last reviewed: February 2026

How Licensing Works in Pennsylvania

Pennsylvania regulates private detectives under the Private Detective Act of 1953 (22 P.S. § 11 et seq.). Unlike many states, Pennsylvania does not license private detectives through an executive branch agency. Instead, private detective licenses are issued by the courts of common pleas in the county where the applicant resides or maintains a principal place of business.

The Act provides for licensure of private detective agencies and private detectives. Applicants must petition the court and satisfy statutory requirements prior to licensure.

Pennsylvania does not maintain a statewide licensing regime for private security guard companies or unarmed security guards under a dedicated private security statute.

Armed security personnel are regulated under the Lethal Weapons Training Act (22 Pa.C.S. § 501 et seq.). Individuals carrying lethal weapons in connection with employment must obtain certification through the Pennsylvania State Police under that Act. This certification is separate from private detective licensure.

Regulation of private detective licensure is decentralized through the county courts, while armed security certification is administered at the state level.

Licenses Issued by the State

Security Services

  • Pennsylvania Lethal Weapons Training Act (Act 235) Certification

Private Investigation Services

  • Pennsylvania Private Detective License
  • Pennsylvania Private Detective Agency License

Operational Notes for Multi-State Firms

Pennsylvania uses a court-administered licensing model for private detectives rather than an executive licensing board.

There is no centralized statewide private security guard licensing regime for unarmed security services.

Armed security personnel must obtain certification under the Lethal Weapons Training Act, which does not substitute for required private detective licensure.

Disclaimer: This guide is provided for informational purposes only and does not constitute legal advice. Licensing requirements, regulators, and statutes may change without notice. Always confirm licensing requirements through official state channels.