225 ILCS 70/22
The Board or Department has power to subpoena and bring before it any person in this State and to take testimony either orally or by deposition, or both, with the same fees and mileage and in the same manner as is prescribed by law for judicial proceedings in civil cases.
The Department, upon a determination that probable cause exists that a violation of one or more of the grounds for discipline listed in Section 17 has occurred or is occurring, may subpoena the records of an individual licensed under this Act provided that prior to the submission of such records to the Board, all information indicating the identity of any resident shall be removed and deleted. The use of such records shall be restricted to members of the Board and appropriate staff of the Department for the purpose of determining the existence of one or more grounds for discipline of the nursing home administrator as provided for by Section 17 of this Act. Any such review of individual residents' records shall be conducted by the Board in strict confidentiality, provided that such resident records shall be admissible in a disciplinary hearing, before the Department, when necessary to substantiate the grounds for discipline alleged against the administrator licensed under this Act, and provided further that nothing herein shall be deemed to supersede the provisions of Part 21 of Article VIII of the Code of Civil Procedure, as now or hereafter amended, to the extent applicable.
The Secretary , the designated hearing officer, and any member of the Board have the power to administer oaths at any hearing that the Department is authorized to conduct and any other oaths authorized in an Act administered by the Department.
225 ILCS 70/22