The reservations would be compelled to hand them over. They would have no choice.
"Oklahoma’s three U.S. attorneys quickly released a joint statement expressing confidence that “tribal, state, local and federal law enforcement will work together to continue providing exceptional public safety” under the ruling. Jonodev Chaudhuri, ambassador of the Muscogee (Creek) Nation and a former chief justice of the tribe’s Supreme Court, said the state’s argument that such a ruling would cause legal havoc in the state was overblown.
“All the sky-is-falling narratives were dubious at best,” Chaudhuri said. “This would only apply to a small subset of Native Americans committing crimes within the boundaries.
“This case didn’t change ownership of any land. It didn’t impact the prosecutions of non-Indians in any way. All it did was bring clarity to jurisdictional questions regarding the border, and it enhanced the Creek Nation’s ability as a sovereign nation to work with other sovereign interests to protect people and to work in common interests.”
Forrest Tahdooahnippah, a Comanche Nation citizen and attorney who specializes in tribal law, said the ruling’s short-term implications are largely confined to the criminal context and that serious felonies committed by Native Americans in parts of eastern Oklahoma will be subject to federal jurisdiction."
mercurynews.com/2020/07/09/justices-rule-swath-of-oklahoma-remains-tribal-reservation/