N.J. Stat. § 45:19-17
For the purpose of identification of persons engaged in the conduct of a private detective business, or as a private detective or investigator, each such person shall carry and show when requested an identification card, which shall be a white card 4 1/4" x 2 1/2", in the form hereinafter set forth, to be signed, in the case of a private detective or investigator by himself, and in the case of employees of a private detective business by the employer as follows:
Photograph License No. .......................
one square
inch Date of Expiration ................
THIS IS TO CERTIFY THAT .................. is licensed and bonded by the State of New Jersey as a private detective in pursuance to "An act to license and regulate the business of private detectives and private detective agencies, and providing penalties for violation of its provisions," and is vested with all authorities allowed him by law.
.......................................................
Signature of Private Detective.
Photograph License No. .......................
one square
inch Date of Expiration.................
THIS IS TO CERTIFY THAT .................. is employed as an investigator, by the undersigned, a duly licensed and bonded private detective agency, in pursuance to "An act to license and regulate the business of private detectives and private detective agencies, and providing penalties for violation of its provisions," and is vested with all authorities allowed him by law.
...................................
Signature of Employee.
...................................
Signature of employer.
N.J.S. § 45:19-17