Illinois Statutes Chapter 50. Local Government § 727/1-35. Anonymous complaint policy

(a) Any person may file notice of an anonymous complaint to the Illinois Law Enforcement Training Standards Board of any conduct the person believes a law enforcement officer has committed as described in subsection (b) of Section 6.3 of the Illinois Police Training Act. Notwithstanding any other provision in state law or any collective bargaining agreement, the Board shall accept notice and investigate any allegations from individuals who remain anonymous.

(b) The Board shall complete a preliminary review of the allegations to determine whether further investigation is warranted. During the preliminary review, the Board will take all reasonable steps to discover any and all objective verifiable evidence relevant to the alleged violation through the identification, retention, review, and analysis of all available evidence, including, but not limited to: all time-sensitive evidence, audio and video evidence, physical evidence, arrest reports, photographic evidence, GPS records, computer data, lab reports, medical documents, and witness interviews. All reasonable steps will be taken to preserve relevant evidence identified during the preliminary investigation.

(c) If the Board determines that for an anonymous notice there is objective verifiable evidence to support the allegation or allegations, the Board shall complete a sworn affidavit override to comply with subsection (b) of Section 3.8 of the Uniform Peace Officers' Disciplinary Act. The sworn affidavit override shall be specified on a form to be determined by the Board, including what evidence has been reviewed and, in reliance upon that evidence, it shall be affirmed that it is necessary and appropriate for the investigation to continue. It shall forward that form and the alleged violation in accordance with subsection (f) of Section 6.3 of the Illinois Police Training Act.