N.J. Stat. § 2A:167-12
When any such license or order is revoked it shall be done by an order in writing signed by the Governor and filed with the State Parole Board. The form of such order shall be prescribed by the Governor.
Upon the signing of such order, the Governor shall issue his warrant for the arrest of the convict to or for whom such license or order was granted, and his or her return to the place of confinement from which he or she was released thereunder. The warrant may be served by any person authorized to serve criminal process in any county in the State.
The convict to or for whom such license or order was or may be granted, when returned to the place of confinement from which he or she was released thereunder, shall be detained therein according to the terms of his or her original sentence; and, in computing the period of such convict's confinement, if it shall appear that such license or order was revoked because of conviction of crime of an indictable character committed while at liberty upon such license or order, the time between such person's release upon such license or order and return to confinement shall not be taken to be any part of the term of sentence. If the license or order is revoked for reasons other than such conviction of crime, then the holder of such license or order shall be required to serve the balance of time due on his or her sentence to be computed from the date of the violation of one or more of the terms, conditions or limitations which resulted in the revocation of such license or order. If the person for whose arrest such warrant is issued is confined in any prison or penal or correctional institution of this State, the officer to whom the warrant shall be delivered, shall deliver the same to the warden, keeper or chief executive officer of such institution or prison, and the warden, keeper or chief executive officer shall, upon the expiration of the term of imprisonment or period of confinement then being served in that institution or prison, return the convict to the institution or prison from which such person was released under such license or order, or, if the release under such license or order was from the same institution or prison, he shall detain such convict therein according to the terms of his or her original sentence.
No part of a sentence imposed upon a convict, concerning which a license or order has been granted and revoked, shall be deemed to be served by such person while he or she is serving a sentence for an offense other than the one for which he or she was released under such license or order.
N.J.S. § 2A:167-12