Carpenter v. United States
138 S. Ct. 2206 · Decided June 22, 2018 · 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
Carpenter v. United States was decided on June 22, 2018 by a vote of 5–4. The Court reversed the lower court's decision and remanded the case. Chief Justice John G. Roberts Jr. wrote the opinion of the Court. SCDB classifies its main issue as “Search and seizure (general)” in the Criminal Procedure area.
Read the opinion
- CourtListener (Free Law Project) — opinion text
- Supreme Court of the United States — slip opinions, October Term 2017
Case details
- Citations
- 138 S. Ct. 2206 · 201 L. Ed. 2d 507 · 2018 U.S. LEXIS 3844
- Docket number
- 16-402
- Decided
- June 22, 2018
- Argued
- November 29, 2017
- Court era
- Roberts Court
- Decision type
- Opinion of the Court (orally argued)
- Disposition
- Reversed and remanded
- Outcome for petitioner
- The petitioning party received a favorable disposition
- Vote
- 5–4
- Majority opinion
- John G. Roberts Jr.
- Opinion assigned by
- John G. Roberts Jr.
- 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 Anthony M. Kennedy | Dissent | Wrote an opinion |
| Justice Clarence Thomas | Dissent | Wrote an opinion |
| Justice Ruth Bader Ginsburg | Majority | |
| Justice Stephen G. Breyer | Majority | |
| Chief Justice John G. Roberts Jr. | Majority | Wrote an opinion |
| Justice Samuel A. Alito Jr. | Dissent | Wrote an opinion |
| Justice Sonia Sotomayor | Majority | |
| Justice Elena Kagan | Majority | |
| Justice Neil M. Gorsuch | Dissent | Wrote an opinion |
Full case caption
Carpenter v. United States
SCDB identifiers: case 2017-021, docket 2017-021-01.
Related decisions
Other cases on “Search and seizure (general)”
- Dahda v. United States
- Hernandez v. Mesa
- Mitchell v. Wisconsin
- Manuel v. City of Joliet
- White v. Pauly
- Birchfield v. North Dakota
Cases on the same legal provision: Fourth Amendment
- Collins v. Virginia
- Byrd v. United States
- Escondido v. Emmons
- Hernandez v. Mesa
- Kansas v. Glover
- Chadrin Lee Mullenix v. Beatrice Luna
Same Term, same area (Criminal Procedure)
- Dunn v. Madison
- Kernan v. Cuero
- Tharpe v. Sellers
- Class v. United States
- Marinello v. United States
- Wilson v. Sellers
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