[cbanek]

IANAL but "Indian Law" is very complicated also as to what parts of federal law apply to reservations and which don't, and what sovereign rights the Tohono O'odham Nation has.

https://en.wikipedia.org/wiki/Tribal_sovereignty_in_the_Unit...

As someone living in Tucson, and having to go through these Border Patrol checkpoints, it does feel like they've gotten more aggressive over time. The last time I went through a checkpoint, they didn't even ask about citizenship, just wanted to run their dog over the car sniffing for drugs, which I feel is a 4th amendment violation, even though the supreme court probably disagrees.

I'm not sure if they have any legal recourse, but I'd love to hear a lawyer chime in. IANAL.