Interesting case. Here is the opinion in State of Washington v. Guidry, a split court (2-1). Here are links to the briefs:
Larry Guidry appeals his convictions for first degree fish dealing without a license, first degree fish trafficking without a license, four counts of participation of a non-Indian in an Indian fishery for commercial purposes, and four counts of first degree commercial fishing without a license. He argues that the trial court should have dismissed the charges against him because he lawfully fished under the Nisqually Tribal Code. He also argues that insufficient evidence supports his convictions for fish dealing and fish trafficking and that the trial court erred in imposing restitution. We reverse his convictions, vacate the restitution order, and remand.