Mancusi v. Deforte
392 U.S. 364 · Decided June 17, 1968 · 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
Mancusi v. Deforte was decided on June 17, 1968 by a vote of 6–3. The Court affirmed the lower court's decision. Justice John M. Harlan II wrote the opinion of the Court. SCDB classifies its main issue as “Search and seizure (general)” in the Criminal Procedure area.
Read the opinion
Case details
- Citations
- 392 U.S. 364 · 88 S. Ct. 2120 · 20 L. Ed. 2d 1154 · 1968 U.S. LEXIS 3075
- Docket number
- 844
- Decided
- June 17, 1968
- Argued
- April 25, 1968
- Court era
- Warren Court
- Decision type
- Opinion of the Court (orally argued)
- Disposition
- Affirmed
- Outcome for petitioner
- The petitioning party did not receive a favorable disposition
- Vote
- 6–3
- Majority opinion
- John M. Harlan II
- Opinion assigned by
- Earl Warren
- How the case arrived
- Certiorari
- Issue (SCDB)
- Search and seizure (general)
- Issue area
- Criminal Procedure
- Legal provision
- Fourth Amendment
- Type of law
- Constitutional amendment
- Decision direction (SCDB)
- Liberal what this means
How the Justices voted
| Justice | Vote | Separate writing |
|---|---|---|
| Justice Hugo L. Black | Dissent | Wrote an opinion |
| Justice William O. Douglas | Majority | |
| Chief Justice Earl Warren | Majority | |
| Justice John M. Harlan II | Majority | Wrote an opinion |
| Justice William J. Brennan Jr. | Majority | |
| Justice Potter Stewart | Dissent | |
| Justice Byron R. White | Dissent | Wrote an opinion |
| Justice Abe Fortas | Majority | |
| Justice Thurgood Marshall | Majority |
Full case caption
Mancusi, Warden v. Deforte
SCDB identifiers: case 1967-178, docket 1967-178-01.
Related decisions
Other cases on “Search and seizure (general)”
- Lee v. FloridaAltered precedent
- Wainwright v. City of New Orleans
- Miller v. California
- Terry v. Ohio
- Sibron v. New York
- Sabbath v. United States
Cases on the same legal provision: Fourth Amendment
- Harris v. United States
- Desist v. United States
- Kaiser v. New York
- Cooper v. California
- Chambers v. Maroney
- Perini v. Colosimo
Same Term, same area (Criminal Procedure)
- Bitter v. United States
- Roberts v. United States
- Wood v. United States
- Pinto v. Pierce
- Beecher v. Alabama
- Garner v. Yeager
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