
Guides
Chicago inspector general audits: How the process works
Chicago inspector general audits move from complaint screening and scope memos through fieldwork, agency responses, publication, and follow-up.
What to take away
- The Office of Inspector General is Chicago's independent watchdog for city government. It takes complaints from residents, city workers and anonymous tipsters, then decides which ones become formal reviews.
- An audit opens with a scope memo that names the agency, the program, the period under review and the questions it will answer.
- Findings are written against the Chicago municipal code, departmental rules, contracts and grant terms. A code citation is the part a reader can check.
- Follow-up audits ask one questiondid the agency do what the first report required? A repeated finding is the strongest signal in the file.
How the Office of Inspector General takes and triages complaints
The Office of Inspector General investigates misconduct, waste and abuse across Chicago departments, and audits the programs those departments run. It is established under Chapter 2-56 of the Municipal Code of Chicago. Complaints arrive by phone, web form or mail. The office also opens matters on its own when a news story or an internal referral points to a problem.
The office's annual report gives exact counts for each year. The following are broad summaries of recent years, not exact annual totals: about 1,000 to 1,500 complaints a year, typically fewer than 50 formal audits or investigations, and often 20 to 40 open audits at a time.
Staff screen each one for jurisdiction, specificity and whether another body already handles it. A vague claim, or one outside city government, is closed or referred to a police or ethics body.
A complaint that names an agency, a program and a rule that may have been broken moves to a preliminary review. Investigators check records, interview a few people, and decide whether a full audit is worth the resources.
A closed complaint is not proof that nothing happened. It may mean the office lacked jurisdiction, or that the evidence did not support a deeper look.
Reporters who treat closure as exoneration misread the record, and the same logic applies when a missing public record is used to argue that an event never occurred.
The audit process, from scope memo to fieldwork
An audit begins with a scope memo. The memo names the agency, the program, the period under review and the questions the audit will answer. It also states what the audit will not cover, which matters when readers later ask why a known problem went unexamined.
Audit Process Steps
- Complaint or referral arrives and is screened
- Preliminary review gathers basic records
- Scope memo names agency and questions
- Fieldworkdocument requests, sampling, interviews
- Agency gets draft and files written response
- Final report published with findings and recommendations
Fieldwork follows. Auditors request documents, test samples of transactions and interview staff. They compare what they find against the Chicago municipal code, departmental rules, contracts and grant terms. The municipal code is the city's compiled ordinances, and it is the yardstick for most findings.
The office gives the agency a chance to respond before publication. A draft report goes to the agency head, who can contest facts or propose fixes. Auditors weigh that response and decide whether to keep, soften or drop a finding.
The audit process
- A complaint or referral arrives and is screened for jurisdiction.
- Staff open a preliminary review and gather basic records.
- The office issues a scope memo naming the agency and the audit questions.
- Auditors do fieldworkdocument requests, sampling and interviews.
- The agency gets a draft and files a written response.
- The final report is published with findings and recommendations.
Timing varies. Some audits close in months, others run past a year when records are slow or the program is large. The office posts a list of open audits so the public can track what is underway.
For example, the OIG's 2021 audit of the Chicago Police Department's overtime practices examined how the department approved and tracked overtime and reported gaps in documentation. The report number appears on the cover page and in the office's online index.
Reading findings against the Chicago municipal code
A finding usually has four parts: the condition, the criteria, the cause and the effect. The criteria is where the municipal code appears. It is the rule the agency was supposed to follow, quoted or cited by section.
Finding vs. Violation
Audit finding
- Nature
- Administrative conclusion
- Decided by
- Inspector general auditors
- Can be disputed
- Yes, by agency
- Basis
- Municipal code, contract, grant terms
Violation
- Nature
- Criminal charge or court judgment
- Decided by
- Prosecutors or courts
- Can be disputed
- Yes, in legal process
- Basis
- Criminal law
Look for that citation first. A finding that names a code section is easier to verify than one that only describes poor management. When the criteria is a contract or a grant term rather than the code, the report should say so.
The recommendation follows the finding. It tells the agency what to change, and it often sets a deadline. Recommendations range from rewriting a policy to recovering money to training staff.
Be careful with the word violation. An audit finding is an administrative conclusion, and the agency may dispute it.
Document status matters here too. A draft finding, a final finding and an agency response are different records with different weight. Anyone citing an official document should know which stage it came from before treating it as settled.
Follow-up audits and whether recommendations were implemented
The office does not stop at the first report. It tracks each recommendation and asks the agency for a status update. When a recommendation is significant, the office may run a follow-up audit months or years later.
Follow-up audits are short and narrow. They ask one question: did the agency do what the report required? The answer is usually a mix. Some recommendations are fully implemented, some partly, some not at all.
A repeated finding is the strongest signal in the file. If a follow-up audit finds the same problem the first report named, the agency had notice and time to fix it. That pattern is what reporters should highlight, not the original finding alone.
Use this checklist when reading a follow-up:
Follow-up audits
- Did the agency accept or dispute the recommendation?
- Did the agency set a deadline and meet it?
- Did the follow-up find the same problem again?
Follow-up Audit Checklist
- Names original report and date
- Lists each recommendation and status
- Shows evidence of implementation, not promises
- Explains dropped or changed recommendations
- Sets new deadline for open items
Agencies sometimes agree with a recommendation in writing and then miss the deadline. The follow-up is where that gap becomes visible, and it is often the more newsworthy document.
What an audit report does not establish
An audit report is not a verdict. It does not decide guilt, liability or whether a crime occurred. Those calls belong to prosecutors, courts or the ethics board, and they follow different rules.
It also does not prove intent. A finding can show that a rule was broken without showing that anyone meant to break it. Reports often name the cause as poor training, weak controls or unclear policy.
The office works from records it can obtain. If an agency withholds documents or a contractor refuses to cooperate, the report may say so and stop there. That limit belongs in any story that relies on the audit.
An audit also covers a set period. A clean result for one year says nothing about the year before or after. Readers who treat a single report as a permanent grade misread what the office produced.
The Freedom of Information Act, codified at 5 U.S. Code § 552, applies to federal records, not Chicago city records. Requests for Chicago city records are governed by the Illinois Freedom of Information Act (5 ILCS 140). The Office of Information Policy publishes guidance on federal records access; it does not govern disclosure by Chicago agencies.
Where to find reports and how to cite them
The Office of Inspector General posts its audit reports on its website, usually as PDFs.
If a report is not online, a public records request to the office is the next step. Requests should name the audit, the agency and the period. Knowing the right office matters, and finding the right custodian is often the difference between a fast release and a long delay.
When you cite a report, give the office name, the report title or number, the date, and a page number for the finding you quote. Link to the PDF if it is stable. If you are comparing a draft with a final, say which one you used, a habit that official records compared rewards.
Reporters should also read the annual report, which summarizes complaint counts, audit results and trends across city agencies. It is the quickest way to see which departments draw the most scrutiny.
Federal policy on transparency, described in the Office of Information Policy's work on government transparency, concerns federal records. Access to Chicago city records is governed by the Illinois Freedom of Information Act (5 ILCS 140). Treating audit reports as citable records rather than press releases is the standard that government policy reporting expects.
Common questions
How do I file a complaint with the Office of Inspector General?
Use the office's online complaint form, its phone line or mail. Give the agency name, the program, the rule you think was broken, and any documents you have. You can ask to stay anonymous.
Are all complaints turned into audits?
No. The annual report gives exact counts for each year. As a broad summary of recent years, the office receives on the order of 1,000 to 1,500 complaints, and only a few dozen—typically fewer than 50—become formal audits or investigations.
What is the difference between an audit and an investigation?
An audit reviews a program against rules and recommends fixes. An investigation looks at possible misconduct by a person and can lead to discipline or a referral for prosecution.
How long does an audit take, and where are the reports published?
It depends on the program and how fast records arrive. Some close within months, others run past a year, and the office lists open audits so the public can follow progress.
Final reports go on the office's website with a report number and date; older ones may require a public records request to the office or the city's records archive.







