Pennsylvania v. Inocencio Muniz
496 U.S. 582 · Decided June 18, 1990 · 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
Pennsylvania v. Inocencio Muniz was decided on June 18, 1990 by a vote of 8–1. The Court vacated the lower court's decision and remanded the case. Justice William J. Brennan Jr. wrote the opinion of the Court. SCDB classifies its main issue as “Miranda warnings” in the Criminal Procedure area.
Read the opinion
Case details
- Citations
- 496 U.S. 582 · 110 S. Ct. 2638 · 110 L. Ed. 2d 528 · 1990 U.S. LEXIS 3211
- Docket number
- 89-213
- Decided
- June 18, 1990
- Argued
- February 27, 1990
- Court era
- Rehnquist Court
- Decision type
- Opinion of the Court (orally argued)
- Disposition
- Vacated and remanded
- Outcome for petitioner
- The petitioning party received a favorable disposition
- Vote
- 8–1
- Majority opinion
- William J. Brennan Jr.
- Opinion assigned by
- William H. Rehnquist
- How the case arrived
- Certiorari
- Issue (SCDB)
- Miranda warnings
- Issue area
- Criminal Procedure
- Legal provision
- Fifth Amendment (Miranda warnings)
- Type of law
- Constitutional amendment
- Decision direction (SCDB)
- Conservative what this means
How the Justices voted
| Justice | Vote | Separate writing |
|---|---|---|
| Justice William J. Brennan Jr. | Majority | Wrote an opinion |
| Justice Byron R. White | Special concurrence | |
| Justice Thurgood Marshall | Dissent | Wrote an opinion |
| Justice Harry A. Blackmun | Special concurrence | |
| Chief Justice William H. Rehnquist | Special concurrence | Wrote an opinion |
| Justice John Paul Stevens | Special concurrence | |
| Justice Sandra Day O'Connor | Majority | |
| Justice Antonin Scalia | Majority | |
| Justice Anthony M. Kennedy | Majority |
Full case caption
Pennsylvania v. Inocencio Muniz
SCDB identifiers: case 1989-114, docket 1989-114-01.
Related decisions
Other cases on “Miranda warnings”
- Illinois v. Lloyd Perkins
- Robert S. Minnick v. Mississippi
- Duckworth v. Eagan
- Pennsylvania v. Bruder
- Arizona v. Roberson
- Greer v. Miller
Same Term, same area (Criminal Procedure)
- Michael Terrell v. Terry L. Morris
- James v. Illinois
- Dowling v. United States
- Holland v. Illinois
- Baltimore City Department of Social Services v. Bouknight
- United States v. Rene Martin Verdugo-Urquidez
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