No. 17-8995October Term 2018Decided Jun 3, 2019
Mont v. United States
If pretrial detention later counts toward a new sentence, that time does not also count toward finishing federal supervised release.
Case status
- Current stage
- Decided
- Latest event
- Decision released Jun 3, 2019
- What it's about
This case asked whether a person’s federal supervised-release term stops running while the person is held in pretrial detention on new charges, if that detention is later credited toward the sentence for the new conviction. The Court held that such credited pretrial detention does pause the supervised-release term under federal law.
Question presented
1. Whether a statute directed to the administration of imprisoned individuals serves as authority to alter or suspend the running of a criminal sentence of supervised release, when such "tolling'' is without judicial action, and requires the term "imprisonment" as used in the administrative statute, to include pretrial detention prior to an adjudication of guilt. 2. Is a district court required to exercise its jurisdiction in order to suspend the running of a supervised release sentence as directed under 18 U.S.C. §3583(i) prior to expiration of the term of supervised release, when a supervised releasee is in pretrial detention, or does 18 U.S.C. §3624 (e) toll the running of supervised release while in pretrial detention?
- Case path
United States Court of Appeals for the Sixth Circuit / Decision released Jun 3, 2019
- Area
Immigration
Briefing
What it's about
This case asked whether a federal supervised-release term stops running while a person is jailed before trial on new charges, if that jail time is later credited toward the new sentence. The Court said yes: credited pretrial detention pauses the supervised-release term under federal law.
Vote
The Court decided on June 3, 2019, that pretrial detention later credited toward a new conviction pauses a supervised-release term. The prompt does not provide the vote count or opinion lineup.
Impact
This affects people on federal supervised release who are arrested again before that term ends. For example, a judge may still be able to revoke supervised release later if the clock stopped while the person was in credited pretrial detention.
What's next
The Supreme Court has finished this case. Lower courts must apply this rule when deciding whether a supervised-release term expired before a judge acted.
What was the main fight in Mont v. United States?
The dispute was whether supervised release keeps running during pretrial detention on new charges. The key detail was that the detention was later credited toward the new sentence.
Who is most affected by the Court's decision in Mont?
People on federal supervised release who are jailed on new charges are most affected. The rule can extend the court's ability to act if that jail time later counts toward a conviction.
What happens after the Supreme Court's decision in Mont?
The case itself is over at the Supreme Court. Federal judges and lower courts now use this rule in later supervised-release timing disputes.
Decision
What the Court decided
If pretrial detention later counts toward a new sentence, that time does not also count toward finishing federal supervised release.
Impact
This affects people on federal supervised release who are arrested again before that term ends. For example, a judge may still be able to revoke supervised release later if the clock stopped while the person was in credited pretrial detention.
Not official Court text.
Opinion documents
Related cases




Grounding
- Grounding
- Primary materials plus reporting.
- Note
- Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.
- Checked
- Jun 1, 2026
- Method
- Methodology
Primary materials10
Supreme Court docket 17-8995
docket | Jun 1, 2026
Primary case document
Supreme Court document | Jun 1, 2026
CourtListener docket record
docket | Jun 1, 2026
Questions Presented
brief | May 25, 2026
opinion
opinion | Jun 3, 2019
Petition
brief | May 15, 2018
SupremeCourt.gov
official | Jun 1, 2026
SupremeCourt.gov
official | Jun 1, 2026
SupremeCourt.gov
official | Jun 1, 2026
SupremeCourt.gov
official | Jun 1, 2026