Here are the materials:
Government Brief in US v Maggi
An excerpt:
Gordon Mann and Shane Maggi appeal from unrelated convictions on the same basis, namely that they are not “Indians” for purposes of prosecution under the Major Crimes Act. Because there is no evidence that Mann has any blood from a federally recognized Indian tribe, his conviction must be vacated. Maggi’s documented blood from a federally recognized tribe is scant-1/64. However, we do not decide the novel question whether Maggi’s Indian blood degree is adequate; rather, because Maggi lacks sufficient government or tribal recognition as an Indian, his conviction must also be vacated. In light of this disposition, we need not consider Maggi’s additional challenges to the sufficiency of the indictment and the reasonableness of the sentence.
The real question here is whether the government thinks this is the right vehicle to test the Ninth Circuit on the means by which it defines “Indian” under the Major Crimes Act. I’d say definitely not Mann (with no Indian blood from a federally recognized tribe), but maybe Maggi (still only 1/64 blood from a federally recognized tribe). I bet they wait for another case (assuming they want one at all).