(720 ILCS 5/30-3) (from Ch. 38, par. 30-3)
    Sec. 30-3. Advocating overthrow of Government.
    A person who advocates, or with knowledge of its contents knowingly publishes, sells or distributes any document which advocates or with knowledge of its purpose, knowingly becomes a member of any organization which advocates the overthrow or reformation of the existing form of government of this State by violence or unlawful means commits a Class 3 felony.
(Source: P.A. 77-2638.)