N.J. Stat. § 26:3-27
The local board or regional health commission, not operating under the provisions of Title 11A, Civil Service, of the New Jersey Statutes, employing a health officer or any other person whom it is sought to remove, shall formulate or receive charges in writing, against such person and shall fix a time and place for a hearing thereon.
A written copy of the charges and a written notice of the time and place of the hearing shall be served upon the person sought to be removed at least 20 days prior to the hearing.
At the hearing the local board or regional health commission shall hear all witnesses and receive all evidence produced, and if the charges are found to be true in fact, and just cause be shown, the local board or regional health commission may remove or reduce the pay, or position of the person against whom the charges are made.
N.J.S. § 26:3-27