Question juridique clé
Whether the double taxation complaint was admissible without exhaustion of the cantonal instance chain in at least one affected canton.
Solution extraite
No. The complaint was inadmissible because it was directed only against non-final cantonal decisions and the taxpayer had not obtained a decision from the highest cantonal instance in either canton.
Motifs extraits
Federal review under Art. 86(1)(d) and Art. 100(5) BGG requires a final cantonal decision. In double taxation cases, the taxpayer must exhaust the cantonal remedies in at least one affected canton before appealing to the Federal Supreme Court.