N.Y. Crim. Proc. Law § 570.28

§ 570.28 Confinement of the accused in jail when necessary.\n The officer or persons executing the governor's warrant of arrest, or\nthe agent of the demanding state to whom the prisoner may have been\ndelivered may, when necessary, confine the prisoner in the jail of any\ncounty or city through which he may pass; and the keeper of such jail\nmust receive and safely keep the prisoner until the officer or person\nhaving charge of him is ready to proceed on his route, such officer or\nperson, however, being chargeable with the expense of keeping.\n