The majority opinion is here, and the two dissenting opinions are here and here. The majority holds (reversing itself from opinions in 2009 and 2010) that a criminal suspect (here a reckless driver) is utterly free and clear from tribal jurisdiction once the suspect leaves the reservation. Tribal police cannot even hold the suspect until state officials arrive.
One of the dissents raises an interesting point. This outcome strongly encourages anyone — even tribal members — from making a crazy, reckless beeline for the reservation boundary.
Our first posting on this case (with links to briefs) is here. Here are the previous opinions:
First it was 9-0, then 6-3, and now 5-4 the other way. What happened?