The provisions of the several laws and regulations within the District of Columbia for the protection of public or private property and the preservation of peace and order are extended to all public buildings and public grounds belonging to the United States within the District of Columbia.
D.C. Code § 5-133.05
Capitol Building and Grounds, jurisdiction and control, see § 10-503.01. Public parks, playgrounds, and reservations, regulation and control, see § 10-101 et seq. .