Duro v. Reina, 495 U.S. 676 (1990), was a United States Supreme Court case in which the Court concluded that Indian tribes could not prosecute Indians who were members of other tribes for crimes committed by those nonmember Indians on their reservations. The decision was not well received by the tribes, because it defanged their criminal codes by depriving them of the power to enforce them against anyone except their own members. In response, Congress amended a section of the Indian Civil Rights Act, 25 U.S.C. § 1301, to include the power to "exercise criminal jurisdiction over all Indians" as one of the powers of self-government.