35 Ill. Adm. Code 351.305
Hearing Procedures
Section 351
Section 351.305 Hearing
Procedures
a) All witnesses shall be sworn.
b) A party may cross-examine any witness to promote a full and
fair disclosure of the facts, subject to the evidentiary requirements of these
rules. The Hearing Officer may also question witnesses within the same limits.
c) The admission of evidence shall be guided by the following
provisions:
1)
The rules of evidence and privilege, as applied in civil
cases in the circuit courts of Illinois, shall be followed. However, evidence
not admissible under such rules may be admitted, except where precluded by statute,
if the evidence is of the type commonly relied upon by reasonable persons in
the conduct of their affairs.
2) Irrelevant, immaterial and unduly repetitious evidence shall
be excluded.
3) Any part of the evidence may be received in written form when
the hearing will be expedited and the interests of the parties will not be
prejudiced.
4) Objections to evidentiary offers may be made and shall be
noted in the record.
d)
Official notice may be taken of:
1)
Matters of which the circuit courts of Illinois may take
judicial notice:
2)
Generally recognized technical or scientific facts within
the Agency's specialized knowledge.