U.S. Constitution, Article I — The Legislative Branch, Section 8, Clause 10
To define and punish Piracies and Felonies committed on the high Seas, and Offences against the Law of Nations;
Notes
Allows Congress to define and punish piracies and felonies committed on the high seas, and offenses against the law of nations. The power reaches crimes committed at sea beyond any state's waters as well as violations of international law, and lets Congress both define the offenses and set punishments.
Use as reference
Lexinter.net | U.S. Const. art. I, § 8, cl. 10 | https://laws.lexinter.net/constitution/us/article-1/section-8/clause-10