N.J. Stat. § 40A:9-58
The county or intercounty medical examiner or the assistant county or intercounty medical examiner shall take charge of the personal property found on or pertaining to an unknown decedent, and shall make an inventory of all such personal property and file a copy thereof with the clerk of the board of chosen freeholders. Within 20 days after the death, the said personal property with a copy of the inventory shall be delivered to the county treasurer. After 20 days following such delivery the county treasurer, in his discretion, may sell said property at public or private sale. If the proceeds of any such sale shall not be claimed by a personal representative of the decedent or person entitled thereto within 2 years after the sale, the said proceeds shall become the property of the county.
N.J.S. § 40A:9-58