Puerto Rico v. Sanchez Valle, 2016

Puerto Rico v. Sanchez Valle, 579 U.S. 59, decided June 9, 2016, is a double jeopardy case that became a sovereignty case. Luis Sánchez Valle was prosecuted under Puerto Rico's weapons laws after a federal proceeding for the same conduct. The Double Jeopardy Clause allows two sovereigns to prosecute the same offense. The question was whether Puerto Rico is a separate sovereign from the United States for that test. The Court said no.

Justice Kagan's opinion looked for the source of the power to prosecute. States trace theirs to their own prior sovereignty. Indian tribes, in the Court's doctrine, also have a separate origin. Puerto Rico's power to prosecute, the Court held, traces to Congress. Public Law 600 authorized the constitution. Congress approved the constitution. The people of Puerto Rico could not have launched that process on their own as a matter of federal law. Therefore the island is not a separate sovereign for double jeopardy.

"In the nature of a compact," the 1950 phrase, did not win the argument. Local self-government did not win it. The ELA name did not win it. The source test did. That is why this case sits next to PROMESA on this board. Six weeks later Congress would impose a federal oversight board. Sanchez Valle did not decide PROMESA, but it described the same vertical line: Congress still stands behind the local government.

Doble exposición, double jeopardy, being tried twice for the same offense. Soberano separado, separate sovereign. The holding is easy to say in one sentence. Puerto Rico and the United States cannot take successive prosecutions for the same conduct under equivalent laws, because they are not two sovereigns for that clause. Local pride does not change the rubric.

Honesty: 579 U.S. 59 (2016). Not a separate sovereign for double jeopardy. Public Law 600 is the underlying statute. This is not a mockery of the 1952 constitution. It is the Supreme Court's map of where power still comes from. Lesson 30, on the word commonwealth, is the plain-language version of the same map.

The numbered finding stays with the public law, the rubric, or the tally. This lesson invents no percentage, no count of people, and no date that the sources on this page do not support. The English terms are glossed in the text so that the statute can be read without a manifesto.

Sources: Puerto Rico v. Sanchez Valle, 579 U.S. 59 (2016); Public Law 600, 64 Stat. 319. Freeze 2026-08-22.