Tribal Sovereignty and the Limits of Federal Evidence: Authenticating Indian Status in United States v. Harper

In United States v. Harper, the Tenth Circuit reversed a conviction for violent crimes committed in Indian Country because the government failed to provide admissible evidence proving that the defendant was an “Indian” under federal law. At first glance, the ruling appears to turn on a technical evidentiary issue concerning the exclusion of a tribal membership verification letter under the business records exception. Yet the case reveals something deeper: a jurisdictional framework that conditions the recognition of tribal identity on federal evidentiary norms, and in doing so, limits the functional sovereignty of tribal governments in federal courts. This Note seeks to explore this relationship in greater detail and examines how evidentiary standards in the federal system are often rooted in the Western legal tradition, making their application to tribal practices mismatched.