In 1874, a seemingly minor confiscation of contraband alcohol in Polk County, Minnesota, escalated into a pivotal United States Supreme Court case: United States v. Forty-Three Gallons of Whiskey. The dispute arose under federal laws regulating trade and intercourse with Native American tribes, which strictly prohibited selling or transporting spirituous liquors into Indian Country.
Federal marshals seized forty-three gallons of whiskey and other goods from a trader named Lariviere, who argued that the seizure was unlawful because the transaction occurred on land ceded to the United States by treaty, outside the physical boundaries of an established Indian reservation. The Supreme Court was tasked with resolving whether Congress had the constitutional authority to regulate commerce with Native American tribes on non-reservation land within a recognized U. S.
state. Justice David Davis delivered the unanimous opinion, holding that the federal government's authority to regulate commerce with Indian tribes was not geographically restricted to reservation lines. The Court ruled that treaty stipulations could extend federal prohibitions against liquor trafficking to ceded territories as long as the legal relationship between the tribe and the federal government warranted protection.
This decision firmly established that the legal concept of Indian Country extended beyond spatial reservation borders, cementing federal supremacy in regulating tribal affairs and trade across state lines.