(25 ILCS 85/2) (from Ch. 63, par. 13.2)
    Sec. 2. Statement of subject of investigation: service on witness.
    No person shall be required to testify at a hearing unless two members of the Commission are present. No person shall be required to appear at any hearing or testify unless he has been personally served with (a) a copy of this Act and (b) a copy of the law or resolution authorizing the investigation.
(Source: Laws 1957, p. 2446.)