Conspiracy to impede or injure a federal officer is an American offense under 18 U.S.C. § 372. This provision is more than 100 years old and has been infrequently used.[1] It was used in the prosecution of Edward and Elaine Brown, as well as in the prosecutions of the January 6 United States Capitol attack. The law also allows civil suits for conspiring to prevent a federal officer from discharging his duties.[2]