Forgery, deceive or injure another, he falsely makes, completes or alters a written instrument which is or purports to be. A FORGED INSTRUMENT means a written instrument which has been falsely made, completed or altered.Criminal possession of a forged instrument in the third degree is a class A misdemeanor forgery crime and can result in up to one year in jail. A relatively "easy" way to have a basic understanding of Second Degree Forgery in New York is to first examine Forgery in the Third Degree. (2) Criminal possession of a forged instrument in the third degree is a Class A misdemeanor. Criminal Possession of a Forged Instrument in the Third Degree is a Class A misdemeanor. Criminal Possession of a Forged Instrument in the First Degree is a Class "C" Non-Violent Felony. We are highly experienced forgery lawyers in Columbus, OH and all of central Ohio. Experience matters when dealing with these cases.