(750 ILCS 5/408) (from Ch. 40, par. 408)
    Sec. 408. Collusion - Assent or Consent of Petitioner.) If it appears, to the satisfaction of the court, that the injury complained of was occasioned by collusion of the parties, or done with the assent of the petitioner for the purpose of obtaining a dissolution of marriage or legal separation or declaration of invalidity of marriage, or that the petitioner was consenting thereto, then no dissolution of marriage or legal separation or declaration of invalidity of marriage may be adjudged.
(Source: P.A. 80-923.)