Welcome to the Office of Executive Inspector General
for the Illinois State Treasurer. 

At the Office of Executive Inspector General (OEIG), we believe that ethical conduct and public trust are essential to making government work better for everyone. Our mission is to promote a workplace culture grounded in integrity, transparency, and accountability. We’re here to support employees of the Illinois State Treasurer’s Office in understanding the standards, responsibilities, and expectations that come with public service.

This website provides an overview of our role and offers helpful resources, including training materials, policy guidance, and information on employee support and protections—for both Treasurer’s Office staff and those who work with them.

History of our Office

Our office was established under the State Officials and Employees Ethics Act of 2003 as part of a statewide ethics reform. Across Illinois, the Offices of Executive Inspectors General serve as independent oversight authorities committed to promoting ethical conduct, transparency, and accountability within state government.

Each Illinois Constitutional Officer, including the Governor, Attorney General, Secretary of State, Comptroller, and Treasurer, has an Executive Inspector General (EIG) appointed to serve a five-year term. While each OEIG operates independently and addresses the distinct priorities of its respective office, all share a common mission: to safeguard integrity, promote accountability, and uphold public trust across Illinois state government.

The OEIG for the Illinois State Treasurer plays a vital role within this statewide network of oversight. It investigates complaints involving the Treasurer’s Office, including allegations of misuse of public resources, conflicts of interest, violations of the Ethics Act, harassment, procurement fraud, and other forms of misconduct. Through thorough and impartial investigations, the OEIG helps safeguard the integrity of the Treasurer’s Office and reinforces public trust in the management of Illinois’ financial resources.

Jurisdiction, Roles & Responsibilities

The OEIG has jurisdictional authority over the employees, appointees, elected officials, and vendors doing business with the Illinois State Treasurer’s Office.

The OEIG investigates allegations of misconduct, including fraud, waste, abuse, mismanagement, and violations of the State Officials and Employees Ethics Act. Examples include misuse of state resources, procurement fraud, harassment, improper time reporting, and engaging in prohibited political activity.

By law, the OEIG may only investigate matters that both fall within its jurisdiction and occurred within the past twelve months. Complaints involving other branches of government, unrelated entities, or internal administrative dissatisfactions are outside its authority. Some matters may be referred to other investigative or prosecutorial bodies, including law enforcement or other inspectors general.

In addition to investigations, the OEIG supports the Treasurer’s Office ethics officer by administering the required Ethics Training, Harassment & Discrimination Prevention Training, and by managing the Revolving Door Prohibition process.

In addition to investigations, the OEIG supports the Treasurer’s Office ethics officer by administering the required Ethics Training, Harassment & Discrimination Prevention Training, and by managing the Revolving Door Prohibition process.

Monthly Investigation Reports

Monthly reports by the Executive Inspector General for the State Treasurer’s Office are required by law to be made publicly available on our website. They can be accessed here:

FY 2026 Monthly Reports

FY 2025 Monthly Reports
FY 2024 Monthly Reports
FY 2023 Monthly Reports
FY 2022 Monthly Reports
FY 2021 Monthly Reports
FY 2020 Monthly Reports
FY 2019 Monthly Reports
FY 2018 Monthly Reports

FY 2017 Monthly Reports
FY 2016 Monthly Reports

Frequently Asked Questions (FAQs)

What is the function of the Office of Executive Inspector General (OEIG) for the Illinois State Treasurer?

The function of the OEIG is to investigate allegations of misconduct and violations of the State Officials and Employees Ethics Act by employees, appointees, elected officials or vendors doing business with the Illinois State Treasurer’s Office.

What is the OEIG’s jurisdiction?

The jurisdiction of the OEIG only extends to the Office of the Illinois State Treasurer, including its employees, appointees, officials, vendors and others doing business with the Treasurer’s Office.

Who can file a complaint?

Complaints may be submitted to the OEIG for the Illinois State Treasurer by anyone, including-but not limited to- Illinois residents, state employees, and vendors. However, the complaint must involve the conduct of a Treasurer’s Office employee, appointee, official, or someone doing business with the Treasurer’s Office. Complaints that fall outside this scope (such as those involving other state agencies or unrelated Ethics Act violations) will be referred to the appropriate OEIG or law enforcement agency.

Can I submit a complaint anonymously?

Yes, complaints may be submitted anonymously. However, providing as much detailed information as possible increases the likelihood that the OEIG can assess the complaint and determine whether an investigation is warranted.

Do I have to cooperate with the OEIG?

As a Treasurer’s Office employee or appointee, under Section 20-70 of the Ethics Act and Executive Order 15-01, you have an obligation to cooperate in OEIG investigations. You must participate in interviews as requested, tell the truth, and not withhold information. Failure to do so is subject to a penalty of disciplinary action up to and including termination. Monetary fines may also be assessed by the EEC for failing to cooperate with OEIG investigations.

How do I file a complaint with the OEIG?

A complaint may be filed in writing, preferably on an OEIG complaint form, or verbally. You may file a complaint by:

Will my identity be disclosed if I file a complaint?

Under the Ethics Act, the identity of an individual reporting any possible or alleged misconduct to the OEIG is confidential and may not be disclosed without the consent of that individual, unless the individual consents to disclosure of his or her name or disclosure of the individual’s identity is otherwise required by law. 5 ILCS 430/20-90(a).

Are complaints kept confidential once received by the OEIG?

Generally, all records pertaining to OEIG investigations are considered confidential and therefore, not subject to public release. Investigative files and reports of the OEIG are exempt from the Freedom of Information Act. However, if an investigation results in a finding that an employee engaged in misconduct, a report summarizing the investigation may be made public by the Executive Ethics Commission in accordance with applicable law.

The Ethics Act provides that “[u]nless otherwise provided in this Act, all investigatory files and reports of the Office of an Executive Inspector General, other than monthly reports required under Section 20-85, are confidential, are exempt from disclosure under the Freedom of Information Act, and shall not be divulged to any person or agency, except as necessary (i) to a law enforcement authority, (ii) to the ultimate jurisdictional authority, (iii) to the Executive Ethics Commission, (iv) to another Inspector General appointed pursuant to this Act, or (v) to an Inspector General appointed or employed by a Regional Transit Board in accordance with Section 75-10.” 5 ILCS 430/20-95(d).

What types of allegations fall under the OEIG’s jurisdiction?

The OEIG for the Illinois State Treasurer investigates allegations such as:

  • Waste, fraud, abuse of authority, or corruption
  • Ghost payrolling, bid rigging, theft, and misuse of state property or time
  • Procurement fraud, hiring improprieties, and improper time reporting
  • Violations of the State Officials and Employees Ethics Act, including:
    • Prohibited political activity
    • Revolving door violations
    • Discrimination, Harassment, Sexual harassment
    • Gift ban violations
    • Retaliation
What happens if the OEIG does not have jurisdiction over a matter?

The complainant will generally receive written notification of that fact. Or, when appropriate, the complaint will be referred to another entity that may act upon it.

How long does it take to complete an investigation?

The length of time required by an investigation is determined by a number of factors including, the nature of the allegation, the number of interviews required to identify the facts, the number of documents that must be obtained and analyzed, and other matters. Generally, it is the objective of the OEIG to conclude each investigation as expeditiously as possible.

What communication can I expect from the OEIG after I file a complaint?

After you file a complaint with the OEIG, you will be contacted again if we need additional information or clarification. The OEIG is an independent, objective investigative agency. It does not represent any party or agency in an investigation and does not investigate on behalf of any individual or agency.

Are all complaints investigated?

Not necessarily. The OEIG has discretion to decline an investigation for several reasons:

  • The alleged misconduct occurred more than one year prior to the complaint, unless there was an attempt to conceal it.
  • The subject is outside of the OEIG’s jurisdiction.
  • The issue is more appropriately handled as an internal management matter by the Treasurer’s Office.
  • The matter is already settled, currently pending before a court or an administrative agency, or otherwise being addressed elsewhere.

Complaints unrelated to the Treasurer’s Office—such as those involving local governments, courts, federal agencies, or the legislative branch—do not fall under the OEIG’s jurisdiction. In some cases, complaints may be referred to another inspector general or law enforcement agency for appropriate action.

What types of complaints does the OEIG decline?

The OEIG does not have jurisdiction to investigate complaints related to city or municipal officials, county officials, federal officials, or federal or state court judges or employees without any government affiliation.

Are there any time limits for filing a complaint?

Yes. By law, the OEIG cannot accept complaints about alleged misconduct that occurred more than one year prior to the date of submission, unless the complaint involves facts that were actively concealed.

What powers are available to the OEIG?

The OEIG may issue subpoenas requiring the appearance of anyone for questioning and the production of any books, records, or other documents relevant to an investigation. The OEIG may also interview any individual under its jurisdiction and request records in furtherance of an investigation.

Are law enforcement agencies affiliated with the OEIG?

Certain complaints received by the OEIG may require the involvement of other investigative or prosecutorial entities. Criminal matters, for example, may require the participation of, or referral to, other prosecuting or law enforcement authorities. The OEIG may also refer a criminal matter to the Illinois State Police or other appropriate law enforcement authority.

Are there any consequences for false reporting?

False reporting is prohibited and not only undermines the integrity of the investigative process but also diverts resources from legitimate concerns. Individuals should report misconduct in good faith and with due care.

Under Illinois law, knowingly submitting a false complaint to the OEIG is a serious offense. Specifically:

  • Any person who intentionally makes a false report alleging a violation of the State Officials and Employees Ethics Act may be found guilty of a Class A misdemeanor. (5 ILCS 430/50-5(d))
  • The Executive Ethics Commission (EEC) may impose a fine of up to $5,000 on individuals who knowingly file false, frivolous, or bad faith complaints, or who intentionally interfere with or obstruct an OEIG investigation.
  • Additionally, knowingly making a false report of sexual harassment to the OEIG, the EEC, or certain law enforcement agencies or officials may result in a misdemeanor charge.

Other OEIGs & Related Resources

Illinois Executive Inspectors General – Other Offices

Related Online Resources:

Contact Us

Contact the OEIG to report a non-emergency violation of law, rule or regulation.

Springfield

Office of Executive Inspector General

Illinois State Treasurer
Marine Bank Building

1 East Old State Capitol Plaza

Springfield, IL 62701


Chicago

Office of Executive Inspector General

Illinois State Treasurer

555 W. Monroe Street
Chicago, IL 60661


Hours:

Monday-Friday
8:00 a.m. – 4:00 p.m.

Talk to Us:

Call OEIG: (217) 557-1972
Ethics Hotline: (833) 996-1651
E-Mail: OEIG@illinoistreasurer.gov 

The Executive Inspector General for the Illinois State Treasurer is Heather A. Stone.
She can be reached at OEIG@illinoistreasurer.gov or (217) 557-1972.

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In the event of an emergency, such as those involving the illegal possession of a weapon, you should contact the police.