United States v. Flores

Background

A U.S. citizen is accused of murdering another U.S. citizen aboard the S.S. "Padnsay," an American merchant ship that was unloading cargo at Matadi in the Belgian Congo. After the killing the accused was brought into the Port of Philadelphia and indicted in federal court. The District Court dismissed the case, saying it had no authority (power to decide and punish) because the crime occurred while the ship lay in foreign territorial waters.

Reasoning

The Court addressed whether the Constitution’s grant of admiralty and maritime power allows Congress and federal courts to deal with crimes on U.S. vessels even when those ships are in foreign waters, and whether the criminal law at issue actually reaches such offenses. The opinion traces historical practice, English admiralty rules, earlier Acts of Congress, and prior cases. It holds that the constitutional grant, historical practice, and the language of the statute together permit Congress to define and punish crimes on American vessels in foreign ports. As a result the Court found the indictment adequately charged an offense within federal maritime authority and reversed the lower court’s dismissal.

Real world impact

Practically, the decision means federal authorities can prosecute crimes by U.S. citizens on U.S. merchant ships while those ships are in foreign ports or waters, unless the foreign state has already asserted and is exercising its own criminal power. The ruling sends such cases back to federal court for further proceedings rather than leaving them permanently unpunishable by U.S. law.