N.J. Stat. § 59:2-4 : — CLAIMS AGAINST PUBLIC ENTITIESIMMUNITY OF PUBLIC ENTITY GENERALLY —4 - Adoption or failure to adopt or enforce a law TEXT PDF A public entity is not liable for any injury caused by adopting or failing to adopt a law or by failing to enforce any law. N.J.S. § 59:2-4 L.1972, c.45, s.59:2-4.