N.Y. Penal Law § 240.62
A person is guilty of placing a false bomb or hazardous substance in the first degree when he or she places, or causes to be placed, in or upon school grounds, a public building, or a public place any device or object that by its design, construction, content or characteristics appears to be or to contain, a bomb, destructive device, explosive or hazardous substance, but is, in fact, an inoperative facsimile or imitation of such a bomb, destructive device, explosive or hazardous substance and which he or she knows, intends or reasonably believes will appear to be a bomb, destructive device, explosive or hazardous substance under circumstances in which it is likely to cause public alarm or inconvenience. For purposes of this section the term "public building" shall have the meaning set forth in section four hundred one of the executive law.
Placing a false bomb or hazardous substance in the first degree is a class D felony.
N.Y. Penal Law § 240.62