710 ILCS 30/20-50: Witnesses, subpoenas, depositions.

(a) The arbitral tribunal may issue subpoenas to parties or third parties for the attendance of witnesses and for the production of books, records, documents, and other evidence and shall have the power to administer oaths. The production will be for the purpose of presenting evidence at the arbitration hearing and will not include pre-trial discovery as known in common law countries. Subpoenas so issued shall be served and, upon application to the court by a party or the arbitral tribunal, enforced, in the manner provided by law for the service and enforcement of subpoenas in civil cases.

(b) All provisions of law compelling a person under subpoena to testify are applicable.

(c) On application of a party and for use as evidence, the arbitral tribunal may permit a deposition to be taken, in the manner and upon the terms designated by the arbitrators, of a witness who cannot be subpoenaed or is unable to attend the hearing.

(d) No other discovery shall be permitted unless otherwise agreed by the parties.