Whether Congress disestablished the Muscogee (Creek) Reservation so that Oklahoma had jurisdiction to prosecute Murphy in state court.
Holding
No. The Creek Reservation remained an Indian reservation for purposes of federal criminal-jurisdiction law, and Oklahoma therefore lacked jurisdiction over Murphy’s prosecution.
Reasoning
The Court affirmed the Tenth Circuit “for the reasons stated in McGirt v. Oklahoma.” McGirt held that the relevant question is whether Congress clearly enacted legislation ending the reservation. A reservation does not disappear merely because later statutes altered tribal governance, allotted tribal lands, opened land to non-Indian settlement, or produced demographic change.
Applying that rule to the Creek Reservation, the McGirt analysis concluded that Congress had not clearly disestablished it. Because the reservation remained intact, land within its historic boundaries remained Indian country under federal law.
Murphy was an Indian defendant accused of a major crime committed in Indian country. Under the Major Crimes Act, the Federal Government, rather than Oklahoma, has jurisdiction over such a prosecution. The Court therefore affirmed the Tenth Circuit’s judgment granting relief from the state conviction.