A person acquires lost property when he exercises control over property of another which he knows to have been lost or mislaid, or to have been delivered under a mistake as to the identity of the recipient or the nature or amount of the property, without taking reasonable measures to return such property to the owner;
A person obtains property by false promise when, pursuant to a scheme to defraud, he obtains property of another by means of a representation, express or implied, that he or a third person will in the future engage in particular conduct, and when he does not intend to engage in such conduct or, as the case may be, does not believe that the third person intends to engage in such conduct.
In any prosecution for larceny based upon a false promise, the defendant's intention or belief that the promise would not be performed may not be established by or inferred from the fact alone that such promise was not performed. Such a finding may be based only upon evidence establishing that the facts and circumstances of the case are wholly consistent with guilty intent or belief and wholly inconsistent with innocent intent or belief, and excluding to a moral certainty every hypothesis except that of the defendant's intention or belief that the promise would not be performed;
A person obtains property by extortion when he compels or induces another person to deliver such property to himself or to a third person by means of instilling in him a fear that, if the property is not so delivered, the actor or another will:
N.Y. Penal Law § 155.05