Double jeopardy in Puerto Rico
Commonwealth of Puerto Rico v. Luis M. Sanchez Valle
In brief
Puerto Rico could not prosecute Sanchez Valle for the same conduct after his federal conviction, and the Supreme Court agreed with Puerto Rico’s highest court.
- Where it stands
- Decided
Decided 6-2 · June 9, 2016 · Opinion by Justice Kagan
- What it’s about
- After Luis M. Sanchez Valle was convicted in federal court, Puerto Rico sought to prosecute him for the same conduct under its weapons laws.
- Who it affects
- Puerto Rico could not proceed with its proposed prosecution of Sanchez Valle after his federal conviction.
Summary: written with AI from the case record.
What it's about
The Supreme Court agreed with Puerto Rico’s highest court (affirmed) that the Constitution’s protection against being prosecuted twice for the same conduct barred the Puerto Rico prosecution because Puerto Rico and the federal government are not separate sovereigns for this purpose.
Sanchez Valle had been convicted in federal court before Puerto Rico sought to prosecute him under its weapons laws for the same conduct.
Puerto Rico’s status as a commonwealth raised a question about whether its power to prosecute was independent of the federal government’s.
Question presented
Are the Commonwealth of Puerto Rico and the U.S. federal government separate sovereigns for the purpose of double jeopardy?
What the Court decided
Holding
The Double Jeopardy Clause bars Puerto Rico and the United States from successively prosecuting a single person for the same conduct under equivalent criminal laws. Affirmed.
- Result
- Affirmed
The Court's reasoning
The Court focused on whether the two governments got their power to prosecute from separate sources. It concluded they shared the same ultimate source, so Puerto Rico could not bring a second prosecution for the same conduct under equivalent criminal laws.
The vote
From the opinions
“I do not agree, however, with the majority’s answer to that question.”
What's next
Puerto Rico cannot go forward with the same prosecution of Sanchez Valle; the Supreme Court’s ruling resolves this case.
Documents
Opinions
Docket activity
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AI analysis generated: Impact Analysis
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Opinion added: Sanchez Valle
Sources
Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.