Brandenburg test

Standard established in  Brandenburg v. Ohio, 395 US 444 (1969), to determine when inflammatory speech intending to advocate illegal action can be restricted. The standard developed determined that speech advocating the use of force or crime could only be proscribed where two conditions were satisfied: (1) the advocacy is “directed to inciting or producing imminent lawless action,” and (2) the advocacy is also “likely to incite or produce such action.”

See [wex:advocacy of illegal action]; [wex:First Amendment].