35 Ill. Adm. Code 166.260
Testimony and Cross-Examination of Witnesses
Section 166
Section 166.260 Testimony
and Cross-Examination of Witnesses
a) All parties may cross-examine any other party's witness. The
scope of cross-examination shall be defined by the scope of direct examination.
b) Employees of one party required by order of the Hearing
Officer to attend a hearing may be examined as if under cross-examination.
c) If the Hearing Officer determines that a witness is hostile or
unwilling, the party calling the witness may examine the witness as if under
cross-examination.
d) Questions calling for an opinion of an expert witness need not
be hypothetical in form.