Key legal question
Whether the taxpayer's cantonal constitutional complaint was admissible or had to be treated as administrative law appeal
Extracted holding
The constitutional complaint was not entered into as such, but was treated as an administrative law appeal because the challenged tax issue fell under federal tax harmonization law.
Extracted reasoning
Because the dispute concerned extraordinary income under harmonized tax law, the proper remedy was administrative law appeal under the StHG; the filing met the formal requirements for that remedy.