N.J. Stat. § 2A:167-9
If the parole officer having charge of any convict at large or at liberty under any such license or order shall have reasonable cause to believe that such person has resumed, or is about to resume, criminal conduct or associations, or has violated the terms, conditions or limitations of such license or order in any important respect, and the situation is one of immediate emergency, then such parole officer shall notify the division of parole which may, if the facts warrant, treat such convict as delinquent under such license or order. The division of parole shall immediately notify the governor and the state parole board of such action. By his own warrant the parole officer may apprehend any such delinquent person and cause his or her return to the institution from which released or cause such person's immediate confinement in an appropriate county or municipal jail, penitentiary or lockup. Such retaking and detention shall continue under authority of the parole officer's warrant until the determination by the governor as to the revocation of the license or order under which such convict is at large or at liberty, or his or her return to the community under such license or order. Such warrant shall be in the form prescribed by the state parole board and approved by the governor, and, when signed by the parole officer in charge of the case, shall be sufficient warrant and authority to all peace officers to assist in the apprehension of the convict and shall be also sufficient authority for the detention of the convict in the institution from which released or in a municipal or county jail, penitentiary or lockup. In such case, credit shall be given the convict on his or her sentence for time spent in such custody while awaiting the decision of the governor as to revocation of such license or order.
N.J.S. § 2A:167-9