N.J. Stat. Ann. § 40A:9-111

All bonds required by law to be taken by the sheriff shall be recorded in the office of the county clerk in a book to be provided for that purpose, and upon being so recorded, shall have the force and effect of a recognizance. A copy of the bond duly certified by the county clerk shall be evidential in any court and have the same effect as if the original bond were produced and proven. Where the condition of any such bond shall have been fully complied with, the sheriff shall execute a warrant to cancel the bond and the record thereof. Any such bond may be cancelled and discharged by such warrant or by the Superior Court and a notation of said discharge shall be entered in the said book.