40 US Code 1315 is going to be famous after today.

> 40 U.S. Code § 1315.

>Law enforcement authority of Secretary of Homeland Security for protection of public property

(a) In General.—

To the extent provided for by transfers made pursuant to the Homeland Security Act of 2002, the Secretary of Homeland Security (in this section referred to as the “Secretary”) shall protect the buildings, grounds, and property that are owned, occupied, or secured by the Federal Government (including any agency, instrumentality, or wholly owned or mixed-ownership corporation thereof) and the persons on the property.