Key legal question
Whether the tax court may review cantonal tax statutes for constitutionality and conformity with federal law
Extracted holding
Yes; the court must examine challenged cantonal law for compliance with the Federal Constitution and federal law, while showing restraint only where the constitutional issue is not clearly settled.
Extracted reasoning
The court stated that it is not only entitled but obliged to review cantonal norms when a constitutional complaint is raised against a concrete tax decision.