United States v. Marion
404 U.S. 307 · Decided December 20, 1971 · Supreme Court of the United States
Record summary. This page is generated from the Supreme Court Database’s coded data about the case. It describes who decided what, not the Court’s reasoning. Read the opinion itself before relying on it. Not legal advice.
At a glance
United States v. Marion was decided on December 20, 1971 unanimously (7–0). The Court reversed the lower court's decision. Justice Byron R. White wrote the opinion of the Court. SCDB classifies its main issue as “Speedy trial” in the Criminal Procedure area.
Read the opinion
Case details
- Citations
- 404 U.S. 307 · 92 S. Ct. 455 · 30 L. Ed. 2d 468 · 1971 U.S. LEXIS 4
- Docket number
- 70-19
- Decided
- December 20, 1971
- Argued
- November 8, 1971
- Court era
- Burger Court
- Decision type
- Opinion of the Court (orally argued)
- Disposition
- Reversed
- Outcome for petitioner
- The petitioning party received a favorable disposition
- Vote
- 7–0 (unanimous)
- Majority opinion
- Byron R. White
- Opinion assigned by
- Warren E. Burger
- How the case arrived
- Appeal
- Issue (SCDB)
- Speedy trial
- Issue area
- Criminal Procedure
- Legal provision
- Sixth Amendment (speedy trial)
- Type of law
- Constitutional amendment
- Decision direction (SCDB)
- Conservative what this means
How the Justices voted
| Justice | Vote | Separate writing |
|---|---|---|
| Justice William O. Douglas | Special concurrence | Wrote an opinion |
| Justice William J. Brennan Jr. | Special concurrence | |
| Justice Potter Stewart | Majority | |
| Justice Byron R. White | Majority | Wrote an opinion |
| Justice Thurgood Marshall | Special concurrence | |
| Chief Justice Warren E. Burger | Majority | |
| Justice Harry A. Blackmun | Majority |
Full case caption
United States v. Marion et al.
SCDB identifiers: case 1971-030, docket 1971-030-01.
Related decisions
Other cases on “Speedy trial”
- Barker v. Wingo
- Strunk v. United States
- Dickey v. Florida
- Moore v. Arizona
- Smith v. Hooey
- Dillingham v. United States
Cases on the same legal provision: Sixth Amendment (speedy trial)
Same Term, same area (Criminal Procedure)
- Harris v. Washington
- Cruz v. Hauck
- Wilwording v. Swenson
- Santobello v. New York
- Picard v. Connor
- United States v. Campos-Serrano
Source: Supreme Court Database, 2026 Release 01 (data file dated September 8, 2026). Imported into CaseTrail November 5, 2026. Coverage: decisions from the 1946 through 2025 Terms. Methodology · Report an error