I know that some tribes have issued citations for illegal fishing in years past, and the cases have ended up in tribal courts. I don't have any recent information.

I speculate that you don't hear back from any tribe about this because they view it as a no-win situation, along with regarding it as none of your business. If a tribe issues few citations, they will be perceived as slack on enforcement. If a tribe has issued many citations, then they're condemmed for having a bunch of fish poachers. It's unlikely any good can come to a tribe by releasing this information to an unknown person. Again this is speculation, but it's how I'd view it if I were them.

Sincerely,

Salmo g.