Illinois Statutes Chapter 740. Civil Liabilities § 147/30. Service of process

(a) All streetgangs and streetgang members engaged in a course or pattern of gang-related criminal activity within this State impliedly consent to service of process upon them as set forth in this Section, or as may be otherwise authorized by the Code of Civil Procedure. 1

(b) Service of process upon a streetgang may be had by leaving a copy of the complaint and summons directed to any officer of such gang, commanding the gang to appear and answer the complaint or otherwise plead at a time and place certain:

(c) If after being summoned a streetgang does not appear, the court shall enter an answer for the streetgang neither affirming nor denying the allegations of the complaint but demanding strict proof thereof, and proceed to trial and judgment without further process.

(d) When any person is named as a defendant streetgang member in any complaint, or subsequently becomes known and is added or joined as a named defendant, service of process may be had as authorized or provided for in the Code of Civil Procedure for service of process in a civil case.

(e) Unknown gang members may be sued as a class and designated as such in the caption of any complaint filed under this Act. Service of process upon unknown members may be made in the manner prescribed for provision of notice to members of a class in a class action, or as the court may direct for providing the best service and notice practicable under the circumstances which shall include individual, personal, or other service upon all members who can be identified and located through reasonable effort.