225 ILCS 25/36
Any person licensed under this Act, the Illinois State Dental Society, Illinois Dental Hygienists Association, or any other similar group or component society or member thereof, or any other person, may report to the Board any information such person, association or society may have which appears to show that a dentist or dental hygienist is or may be in violation of any of the provisions of this Act. Any such person, association, or society, participating in good faith in the making of a report, under the Act, shall have immunity from any liability, civil, criminal or that otherwise might result by reason of such action. For the purpose of any proceedings, civil or criminal, the good faith of any such person, association, or society shall be presumed.
225 ILCS 25/36