N.Y. New York City Civil Court Act § 1707: Appeal to the court of appeals

§ 1707. Appeal to the court of appeals. An appeal may be taken direct

to the court of appeals from a judgment or order which finally

determines an action or special proceeding where the only question

involved on the appeal is the validity of a statutory provision of the

state or of the United States under the constitution of the state or of

the United States. On any such appeal only the constitutional question

shall be considered and determined by the court.