92 Ill. Adm. Code 446.701
Discovery
Section 446
Section 446.701 Discovery
Parties participating in
hearings conducted under these Rules may obtain discovery pursuant to this Rule
regarding any matter not privileged, which is relevant to the subject matter
involved in the pending proceeding or appears reasonably calculated to lead to
the discovery of admissible evidence, provided that discovery may be had only
when the presiding officer, upon his own motion or upon a petition filed by a
party, and upon good cause shown, shall have entered an order approving such
use. A petition must be filed at least fifteen (15) days prior to the
scheduled hearing date.