Questione giuridica chiave
Whether the complaint against the Aargau judgment and prior tax decisions was admissible.
Decisione estratta
The complaint was admissible only against the cantonal final Aargau judgment; it was inadmissible insofar as it challenged the superior tax court decision and the objection decision separately.
Motivazione estratta
Under the devolutive effect, only the appealed judgment is the object of challenge; however, in an intercantonal double-taxation dispute the already final Schwyz assessment could also be attacked.