A public entity of this State or employee, appointee, officer or official or any other person acting on behalf of a public entity shall not provide any information or expend or use time, money, facilities, property, equipment, personnel or other resources in furtherance of any interstate investigation or proceeding seeking to impose civil or criminal liability upon a person or entity for:
This section shall not apply to any investigation or proceeding when the conduct subject to potential liability under the investigation or proceeding would be subject to liability under the laws of this State if committed in this State. This section shall not apply if it is necessary for the agency or person to engage in conduct otherwise prohibited by this section in order to comply with a valid order issued by a court with jurisdiction over the agency or person, or to comply with applicable provisions of State or federal law.
N.J.S. § 2A:84A-22.19