(225 ILCS 320/22) (from Ch. 111, par. 1121)
    Sec. 22. The Director or hearing officer shall have power to subpoena to any hearing authorized by this Act any person in this State to give testimony and evidence either orally or by deposition or both. The Director or hearing officer may also issue subpoena duces tecum for production of any books and records and other documents for evidence at any authorized hearing under this Act. Witnesses subpoenaed as provided herein shall be paid the same witness fees and mileage as provided for witnesses who are subpoenaed to give testimony in any civil case in a court of this State. The Director or hearing officer is hereby empowered to administer oaths or affirmations to witnesses at any hearing authorized by this Act.
(Source: P.A. 87-885.)