A 5-4 decision declaring that much of eastern Oklahoma is an Indian reservation could reshape criminal justice in the area by preventing state authorities from prosecuting Native Americans.
Justice Neil M. Gorsuch, a Westerner who has sided with tribes in previous cases and joined the court’s more liberal members to form the majority, said that Congress had granted the Creek a reservation, and that the United States needed to abide by its promises.
“Today we are asked whether the land these treaties promised remains an Indian reservation for purposes of federal criminal law,” Justice Gorsuch wrote in the majority opinion. “Because Congress has not said otherwise, we hold the government to its word.”