Justice Manual § 9-65.400

The Secret Service will conduct investigations of alleged violations of Title 18 U.S.C. § 1752 and forward copies of all investigative reports to the United States Attorney. Inquiries regarding actual or intended violent conduct or acts of terrorism should be directed to the Counterterrorism Section, National Security Division. In particular, the Counterterrorism Section has supervisory responsibility for violent crimes against the President or other Secret Service protectees, and over acts of terrorism directed at temporary residences and offices of the President or other protectees; such conduct may constitute violations of § 1752 in addition to the applicable federal felony statutes.

If the buildings constituting temporary offices of the President or the President's staff or if a building the President is temporarily visiting is Federal property under the charge and control of the General Services

Administration, and disruptive conduct occurs on such property, violators may also be prosecuted for violation of the Rules and Regulations Governing Conduct on Federal Property found in 41 C.F.R. § 102-74, Subpart C1-19.3. These regulations have been upheld as constitutional against attacks for vagueness and overbreadth. See United States v. Baldwin, 745 F.3d 1027 (10th Cir. 2014); United States v. Cassiagnol, 420 F.2d 868 (4th Cir. 1970), cert. denied, 397 U.S. 1044 (1970); United States v. Sroka, 307 F. Supp. 400 (E.D.Wis. 1969); United States v. Akeson, 290 F. Supp. 212 (D.Colo. 1968).