215 ILCS 5/212.1: Subpoena and document production.

The court shall have jurisdiction, upon, or at any time after the filing of the complaint, upon the petition of the Director to subpoena witnesses and compel their attendance, administer oaths, examine any person under oath and compel any person to subscribe to his or her testimony after it has been correctly reduced to writing, and to require the production of any books, papers, records, or other documents.