N.Y. Const. art. VI, § 24

The assembly shall have the power of impeachment by a vote of a majority of all the members elected thereto. The court for the trial of impeachments shall be composed of the president of the senate, the senators, or the major part of them, and the judges of the court of appeals, or the major part of them. On the trial of an impeachment against the governor or lieutenant-governor, neither the lieutenant-governor nor the temporary president of the senate shall act as a member of the court. No judicial officer shall exercise his or her office after articles of impeachment against him or her shall have been preferred to the senate, until he or she shall have been acquitted. Before the trial of an impeachment, the members of the court shall take an oath or affirmation truly and impartially to try the impeachment according to the evidence, and no person shall be convicted without the concurrence of two-thirds of the members present. Judgment in cases of impeachment shall not extend further than to removal from office, or removal from office and disqualification to hold and enjoy any public office of honor, trust, or profit under this state; but the party impeached shall be liable to indictment and punishment according to law.