(305 ILCS 5/10-13.3) (from Ch. 23, par. 10-13.3)
    Sec. 10-13.3. Authority to administer oaths.
    The Illinois Department, or any person duly authorized to conduct such hearing or investigation, shall have power to administer oaths. Every person who, having taken an oath or made affirmation before the Illinois Department, or any duly authorized officer or employee thereof, shall wilfully swear or affirm falsely, shall be guilty of perjury, and upon conviction shall be punished accordingly.
(Source: Laws 1967, p. 122.)