Understand Mercer County Releases
“Released” describes the end of one agency’s custody, but it does not always mean freedom from all custody. At the Mercer County Jail, a judge may order pretrial release, dismiss a case, credit time served, or authorize another community release. A fixed county sentence may end after lawful credit. The jail may instead send a person to the Illinois Department of Corrections, another county, the U.S. Marshals Service, the Bureau of Prisons, or immigration authorities. A transfer ends the Mercer jail stay while custody continues elsewhere.
The distinction matters because Mercer County has no public online jail roster or recent-release archive. There is no local web list from which a name simply vanishes. The best evidence is the final jail entry showing date, time, authority, and destination. A court docket can explain the order, while an IDOC, BOP, or ICE result can show what followed. Never label a transfer as a community release.
| Event | Meaning | Next record |
|---|---|---|
| Pretrial release | The case continues under court-set terms | Mercer jail entry and court order |
| Time served | The confinement term ended | Sentence and jail release entry |
| Probation | A court sentence served in the community | Court docket and county probation |
| IDOC transfer | State custody begins or continues | IDOC profile after intake |
| Federal or ICE transfer | Another sovereign takes custody | Federal docket, BOP, USMS, or ICE |
Mercer Pretrial Release Has Changed
Illinois began statewide nonmonetary pretrial release on September 18, 2023. A court now decides release or detention under Article 110 of the Code of Criminal Procedure, with a presumption of release on the least restrictive conditions allowed by law and statutory procedures for detention. This is not the same event as completing a county sentence, leaving IDOC on mandatory supervised release, or being discharged after all state supervision.
The Mercer sheriff’s jail page still displays a $42 bonding fee and JailATM bail instructions. That older or limited-purpose page text should not be read as a promise that any person can pay cash and leave. The court order controls. Ask the clerk for the current order and ask jail staff what final release authority was recorded. A fee line, payment receipt, or web instruction cannot substitute for the release entry.
Nonmonetary pretrial release also does not end the criminal case. Conditions, hearings, and later court orders may remain. A docket can show legal authority before the jail completes its operational checks, which is why a same-day court entry and physical release time may differ.
Mercer County Release Record Fields
A Mercer County release record is not one fixed certificate. The relevant fact may sit in a jail register, booking record, release sheet, transport log, court order, or jail-management entry. A focused request should name the person, approximate booking period, and the exact existing fields sought. Asking for the release line and related booking identifier is more useful than asking staff to create a narrative.
| Field | What it establishes |
|---|---|
| Booking number | Links the request to the correct jail event |
| Booking date and time | Marks entry into Mercer custody |
| Charges and holds | Shows the recorded legal bases for detention |
| Court case number | Connects the jail event to the docket |
| Release date and time | Marks when Mercer custody ended |
| Release authority or type | Identifies the order or reason |
| Receiving agency or destination | Separates community release from transfer |
| Property or account acknowledgment | Documents final property or balance handling |
Request a booking photograph as a separate item because the sheriff may treat the image as its own record. A release entry does not decide guilt, erase the court case, or prove that all supervision ended. It records a custody event. The court record and any receiving agency record have distinct purposes.
Request Mercer County Release Records
The Mercer County Sheriff’s FOIA page is the direct route for records held by the sheriff. Illinois FOIA does not require use of a special form, but the request must be written. It may be sent to mcso@frontiernet.net, faxed to 309-582-5158, or mailed or delivered to the Office of Sheriff at 906 SW Third Street, Aledo, Illinois 61231. The county Document Center also lists a general request form.
- Identify the person with full name, date of birth if needed, and an approximate booking or release range.
- Ask for the existing booking and release entry, including the time, release type, authority, and receiving destination.
- Request the booking photograph separately if it is needed and retained.
- Choose electronic delivery and ask for an estimate before chargeable copying.
- If material is withheld, ask for the cited exemption and the available review route.
A noncommercial Illinois FOIA request ordinarily receives a response within five business days, subject to a permitted extension. A response may produce records, deny or partly deny them, seek clarification, give an extension notice, or direct the requester to an available record. The first 50 black-and-white letter or legal pages are free under the sheriff’s posted terms, with added pages listed at $0.15 each. Existing records may be requested; the sheriff need not create a new report or calculate a release date.
Important: Illinois FOIA section 2.15 sets a 72-hour deadline for furnishing specified arrest-report information. It does not create a rolling Mercer County 72-hour release feed.
Mercer Release Records and Courts
Mercer County sits in Illinois’s Fourteenth Judicial Circuit and uses Judici for its public case index. Search by case number when possible. A name search should be checked against filing dates, charges, and any identity details shown. Relevant entries can include a pretrial-release order, detention ruling, dismissal, sentence, custody credit, probation, mittimus, warrant, or discharge entry.
The legal order can come before physical release. Jail staff may still complete identity, warrant, property, transport, and receiving-agency checks. For that reason, the docket time and the sheriff’s release time may differ without either record being wrong. The Mercer County Circuit Clerk can provide a plain or certified copy when the index lacks enough detail. The Circuit Clerk’s official page lists the office on the third floor at 100 SE Third Street, Aledo, with weekday hours from 8:00 a.m. to 4:00 p.m.
Sealing restricts public access to qualifying material. Expungement directs eligible records to be handled under a court order. Neither process should be treated as an automatic promise that every copied photo or outside reference will vanish. Juvenile, medical, victim, active-investigation, security, sealed, and expunged information may be withheld or redacted under the rules that apply to each record.
Find Mercer County Released Inmates
Begin with the event most likely to have occurred. Mercer’s sheriff site publishes facility information but no searchable custody list, booking feed, 24-hour release view, or 72-hour release view. A named-person search therefore starts with the court docket and a jail call, then moves to the system that may have received the person. Written records provide the most durable confirmation.
- Search the Mercer Judici docket for the order or disposition tied to the custody change.
- Call the jail at 309-582-5020 and ask whether the person is held now and, if not, whether the final event was release or transfer.
- File a focused sheriff FOIA request for the booking and release entry.
- If a state sentence is possible, search IDOC and read the full individual profile.
- Use Illinois VINE as a notice and corroboration channel, then confirm with the named agency.
- When federal or immigration custody is documented, check the correct federal system.
The Mercer County 24-Hour Releases page explains the same-day fallback in detail. It does not claim that an online feed exists. Record the date and time of each search. A missing public result proves only that no match appeared in that system at that moment.
IDOC Search for Mercer Releases
The IDOC Individual in Custody Search is the correct public tool after a Mercer detainee enters state prison. Search by IDOC number for the strongest match. Otherwise combine last name and birth date, then compare the IDOC number, admission data, physical profile, sentencing county, and other returned identifiers. Open the full profile rather than relying on a result snippet.
A current institution means state custody continues. A status of parole or mandatory supervised release means the person has left the prison building under supervision. It is not unconditional discharge. The profile may show a Parole Date and Projected Discharge Date. A fully discharged former person may no longer appear in the live search, so IDOC’s Contact Us route and Record Search option become the archive path.
The official IDOC interface shows how state records differ from county jail records. The state offender-search landing page is pictured below.
This screen serves IDOC commitments, not short Mercer County Jail stays that ended without a state admission.
| Search input or field | Use |
|---|---|
| IDOC number | Most precise state-record search key |
| Last name and birth date | Fallback identity search |
| Institution or status | Distinguishes prison custody from parole/MSR |
| Parole Date | Marks the state prison release event |
| Projected Discharge Date | Shows the expected end of sentence or supervision |
Mercer Release Notifications and Supervision
Illinois VINE can provide custody and court-status notifications through email, text, telephone, and app channels. Search the specific person, compare identity and agency fields, and register on the matched record when notification is offered. A VINE alert can lag, and the word “release” may accompany a move to another agency. Follow the alert back to the sheriff, IDOC, court, or other agency it names.
- Probation
- A court sentence supervised in the community by the local court system.
- Parole or MSR
- Release from an Illinois prison while IDOC and PRB supervision continues.
- Discharge
- The end of the corrections sentence and supervision record, apart from the court case.
- Time served
- Completion of the confinement term, which may leave other duties in place.
Mercer County Probation and Court Services is separate from IDOC parole. County probation is proved first by the sentencing order and may be confirmed through the local court channel. State supervision is checked through the IDOC profile and Parole Division. The Mercer County Post-Release Supervision page separates these roles and the limited PRB hearing system.
Federal and Immigration Release Checks
Mercer County Jail houses some federal prisoners in transit or awaiting trial. Leaving the Aledo building may therefore be a handoff to the U.S. Marshals Service rather than a community release. The BOP Inmate Locator searches by federal register number or by name and demographics. A “Released” or “Not in BOP custody” result concerns BOP custody only. The federal court docket determines detention and supervised-release orders, while USMS has no comparable public historic locator.
When a Mercer record names an immigration transfer, use the ICE Online Detainee Locator System. Search by A-number and country of birth when available, or by the supported biographical fields. ODLS is a current-location tool with a limited released-person window, not a full release archive. No result cannot prove community release. Mercer County has no verified ICE detention facility or local ICE contract, so a particular transfer must not be turned into a general claim about the jail.
Mercer Release Versus Custody
Each system answers a narrow question. Combining them prevents a false conclusion based on a missing name. The sheriff’s final line is best for the end of Mercer custody. The court explains authority. A receiving agency proves continued custody or supervision.
| System | What it can show | What it cannot prove alone |
|---|---|---|
| Mercer jail and FOIA | Local hold, release, or transfer | Later state or federal discharge |
| Judici and Circuit Clerk | Order, disposition, sentence, probation | Exact door-opening time |
| IDOC | State custody, parole/MSR, projected fields | Short local release without IDOC intake |
| VINE | Custody or case alert from a feeder agency | Certified release record |
| BOP | Federal custody or release notation | ICE, state, or county status |
| ICE ODLS | Some current immigration detention | Complete historical release trail |
Aledo Jail Release History
The Mercer County Jail opened in 1989 with 30 beds. A later 72-bed addition brought rated capacity to 102, and IDOC material notes a 2011 renovation. These are facility facts, not current population or annual release totals. The sheriff also reports holding Cook County prisoners and federal prisoners in transit or awaiting trial. That mix is why “left the Mercer jail” is not a safe synonym for “went home.”
The jail’s 2024 inspection counted 39 people on one inspection date. That point-in-time figure is not a live count and must not be used as a measure of annual releases. Only an agency record for the named event can establish where a person went.
Mercer Release Account Balances
Illinois law allows specified deductions from a county jail account before release. At sentence completion, 730 ILCS 125/20 directs the sheriff to mail the remaining commissary balance to the person’s last known address after lawful deductions. This account process is separate from the sheriff’s posted bonding charge and separate from proof of the custody event. A requester should seek any property or account acknowledgment only when it is relevant to the release record.
The statute permits deductions tied to costs listed in law, then calls for the balance to go to the last known address after sentence completion. It does not set the release time, decide whether another hold exists, or establish that a transfer became a community release. Property and account records can support the timeline, but the release line remains the key custody record.
Mercer Release Changes Jail Visits
The Mercer County Jail information page states an unusual local rule. A person released from jail custody during the prior six months may not visit someone currently confined there. The restriction can affect contact with family or peers who remain inside, even when the former detainee returned to the community.
This six-month limit is a visiting rule. It does not show parole, probation, a new warrant, or continued custody. Those questions must be checked through the court, county probation, IDOC, or the agency that holds the relevant record. The jail page is the source for the visitor restriction, while release status still comes from the final custody entry.
Call the jail before planning a visit after release. Staff can apply the current visitor rules, while the written release record remains the source for the prior custody event.
Where is the county facility? The Mercer County Jail is at 906 SW Third Street in Aledo and is the only adult detention facility identified in Mercer County. Its page covers jail contact, release verification, transfers, and records in facility-specific detail.