Mealey's (June 1, 2021, 12:20 PM EDT) -- WASHINGTON, D.C. — Tribal police have the authority “to detain temporarily and to search” non-Indians traveling on public roads on a reservation “for potential violations of state or federal law,” based mainly on Indian tribes’ sovereign right to protect “the health or welfare of the tribe,” the U.S. Supreme Court held June 1 in reversing a Ninth Circuit U.S. Court of Appeals ruling....