Here is the opinion in Los Coyotes Band of Cahuilla & Capuño v. Jewell.

From the court’s syllabus:

The panel reversed the district court’s summary judgment in favor of the Los Coyotes Band of Cahuilla and Cupeño Indians, and the court’s finding that the U.S. Secretary of the Interior violated the Indian Self-Determination and Education Assistance Act, the Administrative Procedure Act, and the Fifth Amendment’s guarantee of equal protection  when the Secretary declined to enter into a self-determination contract with the Tribe to fund law enforcement on the Los Coyotes Reservation.

The panel held that the Secretary properly rejected the Tribe’s contract request. The panel also held that the Tribe’s reliance on the Indian Self Determination and Education Assistance Act was misplaced because the Act allows the Tribe to take control of existing programs and obtain funds that the Bureau of Indian Affairs (“BIA”) would otherwise spend on those programs, but here there was no existing BIA program, and therefore  nothing to transfer to the Tribe. The panel further held that the Administrative Procedure Act did not authorize the court to review the BIA’s allocation of law enforcement funding in Indian Country. Finally, the panel held that the BIA’s funding policy did not violate the Fifth Amendment’s equal protection guarantee.

And the briefs:

Interior Opening Brief

Los Coyotes brief

Interior Reply Brief

Lower court materials here.