(A) Mob action consists of any of the following:
(1) The use of force or violence disturbing the public peace by two or more persons acting together and without authority of law;
(2) The assembly of two or more persons to do an unlawful act; or
(3) The 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) Any participant in a mob action who does not withdraw on being commanded to do so by any peace officer commits a violation of this code.
(Ill. Rev. Stat., Ch. 38, § 25-1) (1994 Code, § 27-6-6) Penalty, see § 130.999