U.S. Marshals at Mini-Cassia
Joint-powers minutes document U.S. Marshals prisoners at the Mini-Cassia Criminal Justice Center in Burley. The facility is a regional building, not a single legal custody system. It can hold local county detainees, IDOC residents, ICE detainees, USMS prisoners, and courtesy holds. The responsible authority determines whether an exit is release, transfer, designation, or continued custody elsewhere.
A federal pretrial prisoner may be moved among USMS contract jails for court, security, medical, or housing reasons. A sentenced person may later enter BOP custody after designation. Someone whose federal case ends without a BOP commitment may never obtain a useful BOP locator record. Removal from Mini-Cassia is therefore only evidence of departure from that building.
Confirm a U.S. Marshals Release
No one public tool covers the whole USMS path. Build a chronology from the last known jail, federal court case, and any later federal prison record. Match identifiers carefully because name-only results can join different people.
- Search the Mini-Cassia roster or Recent Bookings for the booking ID, date, case, agency, and photograph.
- Call Mini-Cassia at 208-878-1000 and ask whether the person left the building and which authority received the person.
- Review the federal docket for detention, release, dismissal, plea, judgment, sentence, or supervised-release events.
- Check BOP only when the docket or USMS path indicates a federal sentence or designation.
- If the case ended without BOP placement, confirm through the court and USMS rather than treating no BOP result as release proof.
- Request historical USMS custody records through FOIA when exact dates or transfers are not otherwise public.
The Minidoka County released-inmate search distinguishes this federal path from ordinary county, IDOC, and ICE custody.
U.S. Marshals Record Contacts
Mini-Cassia is the first contact for the physical housing event. It can clarify whether a known local booking remained there, ended, or moved. The federal court docket supplies the legal chronology. USMS records supply the Marshals custody chronology, subject to privacy and law-enforcement limits.
Mini-Cassia Criminal Justice Center
1415 Albion Avenue
Burley, ID 83318
208-878-1000
U.S. Marshals FOIA
Official Freedom of Information Act request page
Use for focused historical USMS custody and Prisoner Tracking System records.
A request should include the full name, other known names, birth date if known, federal case number, date range, Mini-Cassia housing connection, and the exact record or field sought. Ask for custody start and end dates, transfer dates, receiving location or authority if releasable, disposition, and the record format desired. Broad requests can be harder to process.
About USMS Contract Custody
The U.S. Marshals Service holds federal pretrial prisoners and manages sentenced prisoners before BOP designation. It frequently uses contract county beds rather than operating a public-facing jail roster of its own. Mini-Cassia's dated local minutes separately enumerate USMS prisoners, confirming that the federal route is local fact rather than a generic possibility.
The building name does not identify the legal custodian. Cassia operates Mini-Cassia, but a person housed there for USMS remains on a federal custody path. The Minidoka arrest-record office is not the correct source unless a separate Minidoka arrest occurred. Likewise, IDOC should not be searched merely because it is a large correctional database.
A USMS prisoner can leave Mini-Cassia without entering the community. Transport to court, another contract jail, a medical location, or BOP can all remove the name. The exact docket and custody record control.
Federal Docket Release Evidence
The docket explains the judicial basis for federal custody and release. Look for an initial detention order, bond or conditions, dismissal, acquittal, time-served judgment, sentence, remand, surrender direction, or supervised-release condition. A docket event can establish what the court ordered without proving the precise moment the housing jail completed processing.
Compare the order time with the Mini-Cassia departure and any USMS movement. Jail staff and transport officers may still need to complete identity, hold, paperwork, property, and movement steps. A release order can therefore precede the actual custody-end time.
The federal case number is also one of the best identifiers for a FOIA request. Preserve the exact court, case number, filed date, and document label. A sealed document or restricted docket entry can limit public detail, so no-result should remain inconclusive.
BOP Search After USMS Custody
The BOP Inmate Locator covers federal records from 1982 forward. Search by BOP, FBI, DCDC, or INS number, or by name with age, race, and sex refinements. Results can show name, register number, age, race, sex, release date, and location.
| BOP result | What it means |
|---|---|
| Current institution | The person is displayed in BOP custody |
| RELEASED and past date | No longer in BOP custody as of the displayed result |
| Future release date | A projected federal date that can change |
| No match | No conclusion about USMS, state, local, or immigration custody |
BOP explains that RELEASED means no longer in BOP custody. It does not mean free of state custody, immigration custody, pretrial detention, or supervised-release duties. Older federal records may require the National Archives. A person whose case never led to BOP imprisonment can have no BOP record even after USMS detention.
Request USMS Release Records
USMS states that its records include prisoners in Marshals custody and its Prisoner Tracking System. FOIA is the historical fallback when the housing jail and docket do not supply the exact custody chronology. The request should seek existing records, not ask the agency to create a narrative.
Useful fields include date received into USMS custody, housing facility and dates, movement or transfer dates, destination or receiving authority if releasable, date custody ended, and disposition. Supply identity, case, date range, Mini-Cassia connection, and preferred electronic format. Request segregable portions and the cited basis for any withholding.
Privacy and active law-enforcement exemptions can limit disclosure. The absence of a public historical locator does not make all internal records public. Response scope depends on the record, requester, and applicable law.
USMS Release Versus Other Systems
USMS, BOP, ICE, IDOC, and Mini-Cassia measure different custody. A person can move between them, and one agency's release can be another agency's intake. Report the source and scope with every status.
| Source | Correct use | Key limit |
|---|---|---|
| Mini-Cassia | Local housing and departure | Roster absence does not reveal destination |
| Federal docket | Court orders and case outcome | Not a physical exit log |
| USMS record | Marshals custody and movement | Usually requires focused request |
| BOP locator | Federal prison custody and covered release date | May not cover pretrial-only custody |
| ICE ODLS | Immigration custody | Separate civil system with scope limits |
| IDOC | Idaho state custody or supervision | Not a federal locator |
A strong conclusion might state that Mini-Cassia confirmed transfer to USMS and a later BOP result shows current federal prison custody. A weak conclusion says the person was released because the local name disappeared.
Federal Release and Supervision
Federal supervised release is a court-ordered period after imprisonment and is not the same as Idaho parole or probation. The docket and judgment control its terms. BOP RELEASED status only addresses BOP custody; it does not erase supervision or another hold.
If a court orders release before trial, review the exact conditions and later docket events. If a sentence ends, compare the BOP release date with the judgment and any USMS record needed for transport or final custody. Do not convert a projected federal date into a guaranteed physical release.
VINE and the Mini-Cassia roster are not substitutes for federal custody records. A local movement alert can prompt verification, but the responsible federal office and docket must resolve the event.
Local Evidence of USMS Custody
The June 11, 2024 joint-powers minutes recorded five U.S. Marshals prisoners among 123 people at Mini-Cassia. The same snapshot separated 54 Cassia, 24 Minidoka, one Lincoln, one ICE, 35 IDOC, and three courtesy prisoners. October 2025 minutes again separated federal and other custody groups. These dated counts are not current population or capacity claims.
Their value is structural. They show that a person appearing in the Burley building can remain under a federal authority even though the public roster is hosted by Cassia County. A Minidoka connection may come from local housing, arrest geography, or court activity, while the controlling case and custody are federal.
When requesting a record, cite the Mini-Cassia housing connection and the federal case. Ask the center for the local housing departure, the docket for judicial authority, and USMS for the custody movement. If BOP later displays the person, use its register number and release field for that later stage. This layered proof is stronger than any single no-result.