N.J. Stat. Ann. § 40A:14-181

10. Every law enforcement agency, including a police department of an institution of higher education established pursuant to P.L.1970, c.211 (C.18A:6-4.2 et seq.), shall adopt and implement guidelines which shall be consistent with the guidelines governing the "Internal Affairs Policy and Procedures" of the Police Management Manual promulgated by the Police Bureau of the Division of Criminal Justice in the Department of Law and Public Safety, and shall be consistent with any tenure or civil service laws, and shall not supersede any existing contractual agreements.