Federal BOP Release Lookup

BOP Is Federal Only

The Federal Bureau of Prisons inmate locator covers federal inmates from 1982 forward. It is the right tool for a federal sentence or federal prison release. It is not the first stop for a short Boulder County Jail stay, a Colorado DOC prison sentence, probation, or a state parole matter. A Boulder County arrest can become relevant to BOP if the person is sentenced federally or transferred to federal custody, but the federal locator does not replace Boulder County jail records.

BOP's about-records page gives the key release rule: if the listed release date is in the past and no facility location is indicated, the person was released from BOP custody on that date. BOP also warns that release dates may be recalculated or not fully current because of sentence reviews. A federal release date confirms release from BOP custody, not completion of every state, local, or supervision issue.

Search the BOP Locator

Use BOP when there is a federal sentence, a federal case, or a federal detainer that moved beyond Boulder County custody. If the person was booked only into Boulder County Jail, start with the Sheriff's Daily Booking and Listing Reports or records request. If the person was sentenced to CDOC, use the Colorado DOC Offender Search instead.

1. Open the BOP inmate locator.
2. Search by BOP register number when known, or use name fields carefully.
3. Review any listed facility and release date.
4. If the release date is in the past and no facility is shown, treat that as release from BOP custody under BOP's own explanation.
5. Check court, state, or local records if another system may still be involved.

BOP Release Fields

BOP records are designed around federal custody. The fields and display can differ from local jail and state DOC records. For release research, the most useful fields are the name match, register number, age or identifying information, current facility if shown, and release date. A past release date with no listed BOP facility has a specific meaning in BOP's public guidance.

Boulder County Federal Transfers

A Boulder County jail release report can show that a local custody event ended, but it may not explain a later federal sentence. The court record, federal court file, U.S. Marshals transport, or BOP record may carry the next step. U.S. Marshals custody is harder to search publicly. When a local jail stay ends because another authority takes custody, the local release is not the same as release into the community.

Use Boulder County Combined Court for local case results and CDOC for state-prison records. Use BOP only if the person is under the federal system. That split prevents a common error: sending every Boulder County released-inmate search to a federal locator when most county jail releases never become BOP records.

BOP Versus ICE Custody

BOP and ICE are separate federal systems. BOP covers federal criminal custody and federal prison release. ICE ODLS covers immigration detention and current ICE custody. A person may have both criminal and immigration issues, but one locator should not be used to infer the other's status. If the concern is an immigration transfer after Boulder County release, use the ICE detainee locator.

BOP custody

Federal prison or federal inmate record from 1982 forward.

ICE custody

Immigration detention or CBP custody meeting ICE locator criteria.

County custody

Boulder County Jail records, daily reports, and sheriff records requests.

State custody

Colorado DOC prison, parole, or discharge records.

BOP Locator Contact Route

Note: BOP release dates may change due to federal sentence reviews or recalculations.

Past Federal Release Dates

The most useful BOP release guidance is narrow. BOP says that when the release date shown is in the past and no facility location is indicated, the person is no longer in BOP custody. That statement should be read exactly. It confirms the end of BOP custody, not the end of every criminal-justice obligation and not the end of any state, local, or supervision matter. A person may still have federal supervised release, a state case, a county warrant, or another agency record.

For Boulder County readers, that means a federal release date should be paired with local and state context. If the person was first held in Boulder County Jail, the Sheriff's Records Section can document the local booking or transfer. If a Boulder County case remained open, the 20th Judicial District court file may show the local disposition. If Colorado later took custody, CDOC controls the state release status. BOP is powerful when the person is federal. It becomes misleading when used as a catch-all release search.

Federal records also have a timing problem. BOP warns that release dates may not be up to date because sentence reviews and recalculations can change dates. That warning matters when a family member or attorney is trying to understand why a displayed date moved. Pair the BOP result with the federal court docket or direct federal custody source when the date controls immediate plans.

Boulder After BOP Release

A past BOP release date should be followed by the system that still has a legal role. Federal supervised release is not tracked through the Boulder County Jail report. A remaining Boulder County case belongs with the 20th Judicial District. A Colorado prison sentence belongs with CDOC. An immigration transfer belongs with ICE. The BOP page answers whether the person is in federal prison custody, but it does not close every local or state record.

Use the federal result as one piece of the release chain. If the person was first booked in Boulder County, keep the Sheriff's jail record for the local custody event. If the question is why a federal release date changed, use the federal source and court record rather than the county roster. If the question is whether the person is now in another custody system, search that system directly.