New Mexico v. Mescalero Apache Tribe

Background

The Mescalero Apache Tribe lives on a 460,000-acre reservation in New Mexico with about 2,000 tribal members and a small number of non-Indians. With federal help the Tribe built lakes, stocked fish, and increased elk and other game. The Tribe adopted annual hunting and fishing rules that set seasons, bag limits, and license rules. Those tribal rules were reviewed and approved by the Secretary of the Interior. The Tribe sells licenses and runs hunts to create jobs and raise money for tribal services. New Mexico arrested non-Indian hunters who followed tribal rules but not state laws. Lower federal courts sided with the Tribe, and the Supreme Court affirmed that judgment.

Reasoning

The key question was whether New Mexico can apply its hunting and fishing laws to nonmembers on the reservation. The Court looked at federal law, the federal role in creating and managing the reservation’s wildlife, and Congress’ policy favoring tribal self-government. The Court explained that allowing state laws to override tribal rules would nullify the Tribe’s authority and disrupt the carefully coordinated federal-tribal management program. The State could not show that it performed services or faced off-reservation harms that would justify taking control. The Court concluded federal law preempts the State’s attempt to regulate.

Real world impact

Non-Indian hunters on the reservation must follow tribal rules and licenses, not state rules. The Tribe keeps control over wildlife management and related revenue. The State may lose some license sales and matching funds, but the ruling protects tribal self-sufficiency and economic development.