86 Ill. Adm. Code 3000.415
Discovery
Section 3000
Section 3000.415 Discovery
a) Upon written request served on the opposing party, a party
shall be entitled to:
1) The name and address of any witness who may be reasonably
expected to testify on behalf of the opposing party; and
2) All documents or other materials in the possession or control
of the opposing party which the opposing party reasonably expects will be necessary
to introduce into evidence. Petitioner's burden of production includes those
documents Petitioner reasonably expects to introduce into evidence either in
his case-in-chief or in rebuttal. Rebuttal documents, to the extent they are
not immediately identifiable, shall be tendered to Respondent within two weeks
after receipt of documents tendered to Petitioner by Respondent unless
additional time is granted by the hearing officer.
b) Discovery may be obtained only through written requests to
produce witness lists, documents or other materials, as specified in subsection
(a) of this Section. Witnesses and documents responsive to a proper request
for production that were not produced shall be excluded from the hearing and
additional sanctions or penalties may be imposed.