A person subpoenaed who fails to appear, refuses to answer, or produce a book, paper or writing as provided in this article, shall upon conviction be adjudged guilty of a criminal contempt. And in addition thereto a person so subpoenaed shall be subject to all the provisions of law which now or may hereafter exist, relating to witnesses in civil or criminal actions at law; and the governor shall possess all the powers in relation to said provisions which are possessed by any court or judge, but he shall be limited to the matters arising under the provisions of this article.
New York Legal Code