N.Y. County Law § 926

§ 926. Election of district attorneys; term and vacancies. 1. There\nshall continue to be elected in each of the counties of New York, Kings,\nBronx, Queens and Richmond a district attorney who shall hold office for\nthe term of four years from and including the first day of January\nsucceeding his election.\n 2. There shall continue to be appointed by the governor a district\nattorney in each of said counties, when a vacancy shall occur in such\noffice, and the person so appointed shall hold office until the last day\nof December succeeding the first election thereafter at which such\nvacancy can be filled by election.\n