Questão jurídica principal
Whether the abstract challenge to the cantonal source-tax regulation was admissible and whether the appellant had standing.
Decisão extraída
The appeal was admissible only to the extent the appellant, as a cross-border source-taxpayer, could be affected by the provisions applying to non-resident dependent workers.
Fundamentação extraída
An abstract norm review requires only a virtual, factual interest; the appellant worked in Geneva and was taxed at source, so he had standing regarding the challenged category of taxpayers.