The United States attorney for the Western District of New York is the chief federal law enforcement officer in seventeen New York counties: Allegany, Cattaraugus, Chautauqua, Chemung, Erie, Genesee, Livingston, Monroe, Niagara, Ontario, Orleans, Schuyler, Seneca, Steuben, Wayne, Wyoming, and Yates.
The U.S. District Court for the Western District of New York has jurisdiction over all cases prosecuted by the U.S. attorney. As of October 11, 2021[update] the U.S. attorney is Trini E. Ross, who was appointed by President Joe Biden on October 11, 2021.[1]