Overview of Investigative Process

The OEIG typically opens an investigation based on a complaint it receives.  The OEIG may also self-initiate an investigation. Anyone may submit a complaint to the OEIG. If preferred, a complainant may remain anonymous. If a complainant provides their identity, the OEIG may contact the complainant for additional information or clarification. The Ethics Act provides that the identity of a complainant is confidential and cannot be disclosed unless the complainant consents to disclosure or disclosure of the complainant's identity is otherwise required by law. 

If the OEIG opens a complaint for investigation, it has "the discretion to determine the appropriate means of investigation as permitted by law." 5 ILCS 430/20-20(1). The OEIG investigates complaints, in part, by interviewing witnesses, obtaining and analyzing relevant records and documents, and conducting forensic analysis or surveillance. The length of time required for an investigation depends on factors such as the nature of the allegations, the number of interviews, and the number and complexity of records that need to be analyzed.

At the conclusion of an investigation, the OEIG issues a summary report of the investigation if it determines that reasonable cause exists to believe a violation has occurred. The summary report is provided to the appropriate ultimate jurisdictional authority (for instance, to the Office of the Governor for agencies under the Governor's authority) and to the head of each agency affected or involved with the investigation. If the OEIG determines that there is insufficient evidence that a violation has occurred, it issues a written statement of its determination to the Executive Ethics Commission (EEC). The EEC determines whether the OEIG founded summary reports will, or are required to, be made publicly available.  

If an investigation is not opened, the allegations may be referred to the relevant agency or entity for handling, or the complaint may be declined.  Generally, all of the OEIG’s investigatory files and reports are confidential and privileged per the Ethics Act and thus, information the OEIG can provide to complainants or subjects is extremely limited. 

Please note: the OEIG is an independent, objective investigative agency and does not represent any party or agency in an investigation, nor does it investigate on behalf of any individual or agency.