How to Search Winnebago County Criminal Records
The court file is the first stop for a Winnebago County criminal records search. Open the FullCourt Enterprise public access portal and log in to the public session. Pick Searches, then Case Searches by Party. Choose Case Type Criminal on the radio. Type Last, First, and Middle names. Add a Filing Start Date and Filing End Date when the record is older than a year or two.
The Sheriff also runs records work but not a public criminal-history database. Sheriff Records does data entry of police reports, accidents, and tickets and processes FOIA requests. The sheriff's public page says it does not provide criminal background checks for private business or individuals. Criminal background reports for the public route through the Circuit Clerk in room 111.
- Use FullCourt for the case docket and disposition.
- Use the Sheriff FOIA page for the police report.
- Use the Circuit Clerk Document Request for a certified copy of the court file.
- Petition the court for sealing or expungement when eligible under 20 ILCS 2630/5.2.
Charges vs Convictions in Winnebago County Criminal Records
A charge is not a conviction. The sheriff's inmate inquiry says clearly that an arrest is not proof of guilt and that the Sheriff's Office does not provide case disposition. The Illinois system presumes a defendant innocent until a court enters a finding. A guilty plea may also end in supervision under Illinois law, which is not a conviction if the defendant completes the term. Reading the disposition is essential.
| Status | Charge | Conviction |
|---|---|---|
| Source | Filed by State's Attorney | Entered by judge after plea or trial |
| Effect | Triggers court schedule, bond | May result in sentence, probation, jail |
| Public view | Visible on FullCourt unless sealed | Visible on FullCourt unless sealed |
| Background check | Pending status, not a conviction | Counts toward criminal history |
| Clearance route | Dismissed or acquitted records may be expunged | Convictions may be sealable, not always expungeable |
Note: A docket may show a charge filed years ago without a conviction, which is a key fact for any background check question.
Illinois also offers court supervision as a sentence in many misdemeanor and minor felony cases. A defendant who completes supervision avoids a conviction record on that count. This makes reading the disposition essential before drawing any conclusion from a Winnebago County criminal records search.
Winnebago County Prosecution and Defense
The Winnebago County State's Attorney is J. Hanley. The office prosecutes Illinois criminal-law violations, county traffic regulation, juvenile matters, and mental health hearings. The State's Attorney is at 400 W. State Street, Suite 619, Rockford, IL 61101, phone (815) 319-4700. The office posts public information on the State's Attorney biography page and a separate contact page.
Source page: Winnebago County State's Attorney biography.

The Winnebago County Public Defender is Nick Zimmerman. The office handles felony, misdemeanor, traffic, juvenile delinquency, and abuse and neglect cases when appointed by the court. The office sits at 400 W. State Street, Suite 340, Rockford, IL 61101, phone (815) 319-4900. The office has one Public Defender, one First Deputy, twenty-eight Assistant Public Defenders, and support staff.
Source page: Winnebago County Public Defender.

Source page: State's Attorney contact information.

What Winnebago County Criminal Records Show
A criminal case file in Winnebago County contains a full procedural history. The Circuit Clerk FAQ says a Winnebago County case number is year-case type-number. Common criminal codes are CF for felony and CM for misdemeanor. Traffic-criminal cases use TR with criminal flags. The case docket shows each entry by date and label. Sheriff arrest records track the booking event, not the court outcome.
| Field | What It Shows |
|---|---|
| Case number | Year, CF or CM code, and serial number. |
| Charges | Illinois statute citations with class and counts. |
| Bond | Amount, conditions, surety, recognizance, refund status. |
| Arraignment | First criminal hearing where rights and plea are addressed. |
| Plea | Guilty, not guilty, no contest, or open plea entries. |
| Disposition | Dismissal, acquittal, finding, supervision, or conviction. |
| Sentence | Probation, supervision, fine, restitution, jail, or IDOC. |
| Warrants | Bench warrant, capias, or arrest warrant linked to the case. |
Sealing and Expungement of Winnebago County Criminal Records
Illinois criminal records can sometimes be sealed or expunged. The main statute is 20 ILCS 2630/5.2, the Criminal Identification Act. Expungement destroys or returns the record. Sealing keeps the file but blocks ordinary public access. Acquittals, dismissals, releases without charging, and many completed supervisions support expungement. Convictions may be eligible for sealing, but not all classes qualify, and waiting periods apply.
Source page: 20 ILCS 2630/5.2 on ilga.gov.

| Term | Sealed | Expunged |
|---|---|---|
| Record exists | Yes, but hidden from public view | No, destroyed or returned to defendant |
| Background checks | Most employers do not see it | Treated as if never existed for most uses |
| Law enforcement view | Law enforcement can still see it | Some agency access ends, others retain |
| Eligibility | Many convictions and supervisions | Acquittals, dismissals, eligible supervisions |
Approved petition forms are at the Illinois Courts expungement page. The petition is filed in the circuit where the arrest or charge occurred. The Circuit Clerk, Illinois State Police, arresting agency, and State's Attorney all receive service. The State's Attorney can object, which is why some petitions go to a hearing.
Juvenile Records in Winnebago County
Juvenile records get separate, tighter treatment. The Juvenile Court Act sections 705 ILCS 405/1-7 and 705 ILCS 405/1-8 govern court and law-enforcement records. The Circuit Clerk gives juvenile background reports only to attorneys of record and listed parties, in person, with proper ID. The sheriff FOIA page lists juvenile information among common denial grounds. Juvenile case files do not appear in a normal Winnebago County criminal records search.
Source page: 705 ILCS 405/1-7 on ilga.gov.

State Prison Custody for Winnebago County Cases
State prison custody is handled by the Illinois Department of Corrections. Convictions that carry a prison term move the defendant from the county jail to IDOC after sentencing. The IDOC Individual in Custody Search finds state-prisoner records by IDOC number, last name, or first name. The Sheriff's inmate inquiry no longer shows the person once IDOC takes custody. Commissary money on the local account follows the inmate to IDOC under the sheriff's release rules.
Source page: Illinois DOC Individual in Custody Search.

Federal custody is separate. Use the BOP inmate locator for federal records. A defendant charged in the U.S. District Court for the Northern District of Illinois will not appear in the Winnebago County FullCourt portal at all. Federal sentencing data and projected release dates come from BOP, not the local Sheriff or IDOC. The state and federal systems do not share custody records, so a complete criminal history for a Winnebago County resident often requires three separate searches: local Sheriff, IDOC, and BOP, plus the relevant court record systems.
Winnebago County Criminal Background Reports
The Circuit Clerk handles criminal background reports for the public. The FAQ says criminal reports are requested in room 111 or through the Document Request button on the Circuit Clerk home page. Juvenile background reports route through room 108 and are limited to attorneys of record and listed parties with proper ID. A fee schedule applies to both types of reports. The Clerk cannot give legal advice on the result.
The Sheriff explicitly refers private background-check requests to the Circuit Clerk. The sheriff's office handles arrest and warrant entries internally but does not sell criminal histories to private businesses. Police-report copies remain available through Sheriff's FOIA at a per-page fee under 5 ILCS 140/6. For employers, the federal Fair Credit Reporting Act sets a separate set of rules; this site is not a consumer reporting agency, so its data cannot be used for FCRA-regulated decisions.
Note: Public records sources are not FCRA reports; do not use them for employment, tenant, credit, or insurance screening.
DUI and DWI Cases in Winnebago County
DUI cases sit on the line between traffic and criminal records. An Illinois DUI is filed as a criminal traffic case, even though the citation may look like a regular traffic ticket. The Circuit Clerk routes DUI matters to a criminal courtroom for arraignment. The State's Attorney prosecutes. Convictions are reported to the Illinois Secretary of State and feed the state driver record, separate from the court file. Repeat DUI offenses raise the class and can move the case to felony level.
The Secretary of State handles license status, suspensions, and driving privileges. The Circuit Clerk handles the court case itself. Both records matter for any DUI defense or expungement question. The court record may show a supervision outcome that is not a conviction in Illinois, but a DUI is one of the offenses excluded from supervision under state law in most circumstances. See traffic court records for the court-vs-driver-record split.