Tribes that rely on the Colorado River — and the complex set of rules that govern it — are worried as the Donald Trump administration takes actions affecting their access to water.

The decision appears to demonstrate an increasing capacity from the Supreme Court to analyze questions of tribal sovereignty in a balanced and fair manner.

Can a Native person who was found guilty in tribal court be charged for the same crime in the federal system?

Tribal police have the authority to detain non-Indians traveling through reservations if the officer has a reasonable belief that the suspect violated state or federal law, the Supreme Court ruled.