CaseTrail

Maryland v. Alonzo Jay King, Jr.

569 U.S. 435 · Decided June 3, 2013 · 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

Maryland v. Alonzo Jay King, Jr. was decided on June 3, 2013 by a vote of 5–4. The Court reversed the lower court's decision. Justice Anthony M. Kennedy 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
569 U.S. 435 · 133 S. Ct. 1958 · 186 L. Ed. 2d 1 · 2013 U.S. LEXIS 4165
Docket number
12-207
Decided
June 3, 2013
Argued
February 26, 2013
Court era
Roberts Court
Decision type
Opinion of the Court (orally argued)
Disposition
Reversed
Outcome for petitioner
The petitioning party received a favorable disposition
Vote
5–4
Majority opinion
Anthony M. Kennedy
Opinion assigned by
John G. Roberts Jr.
How the case arrived
Certiorari
Legal provision
Fourth Amendment
Type of law
Constitutional amendment
Decision direction (SCDB)
Conservative what this means

How the Justices voted

Full case caption

Maryland, Petitioner v. Alonzo Jay King, Jr.

SCDB identifiers: case 2012-050, docket 2012-050-01.

Other cases on “Search and seizure (general)”

See all

Cases on the same legal provision: Fourth Amendment

Same Term, same area (Criminal Procedure)

See all

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