N.J. Stat. § 40:37-155: Powers of park police.

The members and officers of the park police may arrest on view and without warrant, and take before a court having local criminal jurisdictions of the municipality in which the arrest is made, or of a neighboring municipality, any person found violating the rules and regulations enacted by the commission for the protection, preservation, regulation and control of the parks and parkways, and all property and other things therein. Such members and officers while on or off duty anywhere within the territorial limits of the State, shall have the same powers for the enforcement of the laws of this State and the apprehension of violators thereof as are conferred by law upon police officers or constables.

Amended 1953, c.37, s.89; 1969, c.165; 1997, c.308, s.2.