N.J. Stat. § 2A:152-13
The receipt of the communication mentioned in section 2A:152-12 of this title, by any officer named in said section, shall be sufficient warrant and authority for such officer to make a complaint upon information and belief founded thereon, charging that such person, known or unknown, is engaged in such illegal practices and violating the criminal laws of this state as in the communication stated, and any judge or magistrate having jurisdiction to issue criminal process may take and receive such complaint and issue a warrant for the arrest of such person, known or unknown, found upon the premises designated in the communication, and direct that such person be brought before such judge or magistrate to be dealt with as law and justice shall require.
The officer making any complaint hereunder shall not be liable to any action, civil or criminal, by any person taken upon or found in the place or places mentioned in the written communication.
N.J.S. § 2A:152-13