50 Ill. Adm. Code 2402.180
Subpoenas
Section 2402
Section 2402.180 Subpoenas
a) Upon application to the Hearing Officer by any party, the
Hearing Officer may issue a subpoena for attendance at deposition or hearing,
which may include a command to produce books, papers, documents or tangible
things designated in those materials and reasonably necessary to resolve the
matter under consideration, subject to the limitations on discovery prescribed
by this Section.
b) Every subpoena shall state the title of the action and shall
command each person to whom it is directed to attend and give testimony at the
time and place specified in the subpoena.
c) The Hearing Officer or the Director, upon motion made promptly,
and in any event at or before the time specified in the subpoena for
compliance, may quash or modify the subpoena if it is unreasonable and
oppressive.