N.Y. Second Class Cities Law § 132

§ 132. Deputy commissioner. The deputy commissioner shall have\nauthority to administer oaths and take evidence, affidavits and\nacknowledgments in all matters and proceedings pertaining to the\ndepartment. He shall have general supervision over the records of the\ndepartment and its officers and shall perform such other duties as may\nbe prescribed by the commissioner or by law or by ordinance of the\ncommon council.\n