§ 54. Arraignments outside the county. In furtherance and not by way of limitation of section thirty of this act, a judge of the court, in his capacity as a magistrate, shall have power to arraign a defendant, or conduct a hearing upon any charge, in any county of the city of New York at the place where a defendant or material witness may be confined or hospitalized.
Arraignments outside the county
N.Y. New York City Criminal Court Act § 54, under Miscellaneous Provisions Affecting Cases In Which Judge Sits As Magistrate.
N.Y. New York City Criminal Court Act § 54