New Jersey State Police
Private Detective Unit
P.O. Box 7068
West Trenton, New Jersey 08628-0068
Phone: 609-341-3426 or 609-633-9352
email at: pdu@njsp.org
Private Detective Agencies can file online at:
https://nj.gov/njbusiness/registration/
As a matter of information, the New Jersey State Police Private Detective Unit, on behalf of the Superintendent of the State Police, is the regulating authority for the private security industry in this state.