New Jersey Statutes Title 30. Institutions and Agencies 30 § 6B-2

The court or judicial officer of this State making any such commitment shall have jurisdiction of such person notwithstanding such commitment and may thereafter, at any time, inquire into the mental condition of the person so committed and may determine the necessity for continuance of his restraint, and all such commitments pursuant to this act  1 shall be deemed to be subject to modification or alteration, and in no case shall any such commitment be a final disposition of the custody of any such person.