I think. The petition is a bit confusing. Here is the petition in Butler v. Montana:
Question presented (which tells us almost nothing):
The question presented is whether the justice of the peace, presiding over a court of no record, exercised jurisdiction over a sovereign nation in contravention of New Mexico v. Mescalero Apache Tribe, 462 U.S. 324, 338, 103 S. Ct. 2378, 2388-89, 76 L. Ed. 2d 611 (1983), and federal statutes conferring jurisdiction solely on the Navajo Nation by preventing Petitioner from hunting in the Navajo Nation.
Lower court decision, State v. Butler, here:
Apparently, this is an appeal to the Montana court’s order that Butler violated his probation he received for hunting violations in Montana because he went hunting on the Navajo Nation.