United States v. Kagama, 118 U.S. 375 (1886), was a United States Supreme Court case that upheld the constitutionality of the Major Crimes Act of 1885. This Congressional act gave the federal courts jurisdiction in certain Indian-on-Indian crimes, even if they were committed on an Indian reservation. Kagama, a Yurok Native American (Indian) accused of murder, was selected as a test case by the Department of Justice to test the constitutionality of the Act.