Whether § 9 of the Indian Appropriation Act of 1885 constitutionally authorizes federal prosecution of an Indian for murdering another Indian on an Indian reservation located within a State.
Holding
Yes. Congress validly made the listed major crimes, including murder, federally punishable when committed by an Indian against another Indian on a reservation within a State.
Reasoning
The Court first rejected the argument that the statute could be sustained as a regulation of commerce with Indian tribes. A federal criminal code governing murder, manslaughter, rape, arson, burglary, and larceny among reservation Indians bears no sufficient connection to commerce, so the Indian Commerce Clause was not the source of this authority.
Indian tribes were not foreign nations, States, or fully sovereign political entities under the Constitution. They occupied an anomalous, semi-independent position: they retained authority over internal and social relations in some respects, but existed within United States territory and under ultimate federal political control.
The Court relied on the established relationship between the United States and Indian tribes. Federal law and policy had long treated tribes as dependent communities and as wards of the Nation. Because tribes depended on the United States for protection, political rights, and often basic necessities, the federal government had both a duty and a corresponding power to protect them.
That protective power was especially necessary because reservation Indians owed no allegiance to the States and received no protection from them. The Court emphasized that state populations were often hostile to Indians, while the federal government alone could enforce laws across and on behalf of all tribes. The power therefore arose from the tribes' dependent status, the federal government's historical dealings and promises, and the fact that the tribes lived within the Nation's geographic boundaries.
Earlier cases supported this understanding. Worcester v. Georgia had held that a State could not simply extend its civil and criminal laws over a tribe within its borders, while United States v. Rogers recognized Congress's power to punish crimes in Indian country outside a State. The 1885 Act expressly supplied federal jurisdiction over Indian-on-Indian major crimes after Ex parte Crow Dog had found no such jurisdiction under the prior statutory scheme.