In addition to the Metropolitan Police Department, several federal law enforcement agencies have jurisdiction in the city, including the U.S. Park Police, founded in 1791. Because the D.C. National Guard serves a federal district, the president of the United States—and not city officials—has power to deploy it. Under Section 740 of the Home Rule Act, the president also has the power to temporarily take over the police force in emergency situations for a maximum of 30 days; this period can be extended with congressional approval. In August 2025, Donald Trump invoked Section 740 to declare a public safety emergency.