New York Consolidated Laws, Penal Law - PEN § 400.10 Report of theft or loss of a firearm, rifle or shotgun

1. (a) Any owner or other person lawfully in possession of:  (i) a firearm, rifle or, shotgun who suffers the loss or theft of said weapon;  (ii) ammunition as well as a firearm, rifle or shotgun who suffers the loss or theft of such ammunition as well as a firearm, rifle or shotgun;  or (iii) ammunition and is a dealer in firearms or seller of ammunition who suffers the loss or theft of such ammunition shall within twenty-four hours of the discovery of the loss or theft report the facts and circumstances of the loss or theft to a police department or sheriff's office.

(b) Whenever a person reports the theft or loss of a firearm, rifle, shotgun or ammunition to any police department or sheriff's office, the officer or department receiving such report shall forward notice of such theft or loss to the division of state police via the New York Statewide Police Information Network.  The notice shall contain information in compliance with the New York Statewide Police Information Network Operating Manual, including the caliber, make, model, manufacturer's name and serial number, if any, and any other distinguishing number or identification mark on the weapon.