N.Y. General City Law § 6: Swearing witnesses

§ 6. Swearing witnesses. Whenever the common council of a city shall

have appointed a committee of members of their body upon any subject or

matter within the jurisdiction of such common council, or to examine any

officer of the city, in relation to the discharge of his official

duties, or to the receipt or disbursement by him of any moneys in the

discharge of such duties, or concerning the possession or disposition by

him, in his official capacity, of any property belonging to the city; or

to use, inspect or examine any book, account, voucher or document, in

his possession or under his control as such officer, relating to the

affairs or interests of such city, the chairman of such committee is

authorized to administer oaths to all such witnesses as may appear or be

brought before such committee.