N.J. Stat. § 59:3-9: Entry upon property

A public employee is not liable for his entry upon any property where such entry is expressly or impliedly authorized by law. Nothing in this section exonerates a public employee from liability for an injury proximately caused subsequent to such entry by his own negligent or wrongful act or omission.

L.1972, c. 45, s. 59:3-9.