N.J. Stat. § 38A:5-6
The Governor, whenever he deems it to be for the good of the service, may order any officer to appear before a board of examination. The board of examination shall consist of 3 officers, senior in rank to the officer whose fitness for service is under examination, and such board shall be vested with the powers of courts of inquiry, to examine into the moral character, capacity, availability for active State or Federal service, and physical and professional fitness of such an officer. The board may recommend the retention of the officer being examined, the retirement because of physical inability to perform active service, or his discharge and the vacating of his commission or warrant. The findings of the board shall become effective upon approval by the Governor.
N.J.S. § 38A:5-6