(820 ILCS 405/805) (from Ch. 48, par. 474a)
    Sec. 805. Additional parties. The Director, Referee, and the Board of Review, in any hearing involving benefit claims, may add parties, whenever in his or its discretion, it is necessary to the proper disposition of the case. Such additional parties shall be entitled to reasonable notice of the proceedings and an opportunity to be heard.
(Source: Laws 1951, p. 844.)