410 ILCS 620/22.3
The Director after notice and opportunity for hearing to the applicant or permit holder may deny, suspend, or revoke a permit in any case in which he or she finds that there has been a substantial failure to comply with the provisions of this Act or the standards, rules and regulations established by virtue thereof.
Such notice shall be effected by certified mail or by personal service setting forth the particular reasons for the proposed action and fixing a date, not less than 15 days from the date of such mailing or service, at which time the applicant or permit holder shall be given an opportunity to request a hearing.
The hearing shall be conducted by the Director or by an individual designated in writing by the Director as Hearing Officer to conduct the hearing. On the basis of any such hearing, or upon default of the applicant or permit holder, the Director shall make a determination specifying his or her findings and conclusions. A copy of such determination shall be sent by certified mail or served personally upon the applicant or permit holder.
The procedure governing hearings authorized by this Section shall be in accordance with rules promulgated by the Department. A full and complete record shall be kept of all proceedings, including the notice of hearing, complaint, and all other documents in the nature of pleadings, written motions filed in the proceedings, and the report and orders of the Director and Hearing Officer. All testimony shall be reported but need not be transcribed unless the decision is sought to be reviewed pursuant to the "Administrative Review Law". A copy or copies of the transcript may be obtained by any interested party on payment of the cost of preparing such copy or copies. The Director or Hearing Officer shall, upon his or her own motion or upon the written request of any party to the proceeding, issue subpoenas requiring the attendance and the giving of testimony by witnesses, and subpoenas duces tecum requiring the production of books, papers, records or memoranda. All subpoenas and subpoenas duces tecum issued under this Act may be served by any person of legal age. The fees of witnesses for attendance and travel shall be the same as the fees of witnesses before a circuit court of this State, such fees to be paid when the witness is excused from further attendance. When the witness is subpoenaed at the request of the Director or Hearing Officer, such fees shall be paid in the same manner as other expenses of the Department, and when the witness is subpoenaed at the request of any other party to any such proceeding the Department may require that the cost of service of the subpoena or subpoena duces tecum and the fee of the witness be borne by the party upon whose request the witness is summoned. In such case, the Department in its discretion, may require a deposit to cover the cost of such service and witness fees. A subpoena or subpoena duces tecum issued under this Act shall be served in the same manner as a subpoena issued by a circuit court.
Any circuit court of this State, upon the application of the Director, or upon the application of any other party to the proceeding, may, in its discretion, compel the attendance of witnesses, the production of books, papers, records or memoranda and the giving of testimony before the Director or Hearing Officer conducting an investigation or hearing authorized by this Act in the same manner as production of evidence may be compelled before the court.
The Director or Hearing Officer, or any party in an investigation or hearing before the Department, may cause the depositions of witnesses within the State to be taken in the manner prescribed by the Supreme Court Rules for like depositions in civil actions in courts of this State, and to that end may compel the attendance of witnesses and the production of books, papers, records or memoranda.
410 ILCS 620/22.3