92 Ill. Adm. Code 450.630
Subpoena
Section 450
Section 450.630 Subpoena
Upon timely application to the
Director by any party, or on the motion of the hearing officer, the hearing
officer may issue a subpoena for attendance at a hearing held under these
rules, as well as at a deposition held pursuant to these rules which deposition
may include an order to produce books, records or other tangible items of an
evidentiary nature necessary to the disposition of the issues raised in the
complaint; provided, however, that upon a showing of the unreasonableness or
irrevelancy of a subpoena which may be quashed by the hearing officer.