N.J. Stat. Ann. § 2A:162-9

Whenever cash money is deposited in any criminal case in lieu of bail and recognizance, the court accepting such deposit, or the judge or clerk of said court, shall require the person claiming the deposit to swear to and subscribe an affidavit as to the ownership of the said cash money, which affidavit shall become a part of the record of the case wherein the deposit is made. The form of such affidavits and the proceedings pertaining thereto shall be subject to the rules of the Supreme Court governing said courts.