(A) A person commits mob action when he or she engages in any of the following:
(1) The knowing or reckless use of force or violence disturbing the public peace by two or more persons acting together and without authority of law;
(2) The knowing assembly of two or more persons with the intent to commit or facilitate the commission of a felony or misdemeanor; or
(3) The knowing assembly of two or more persons without authority of law, for the purpose of doing violence to the person or property of anyone supposed to have been guilty of a violation of the law, or for the purpose of exercising correctional powers or regulative powers over any person by violence.
(B) A participant in a mob action who does not withdraw when commanded to do so by a peace officer commits a misdemeanor.
(ILCS Ch. 720, Act 5, § 25-1) (1993 Code, § 27-5-1) Penalty, see § 1-1-19