Key legal question
Whether the abstract challenge to the cantonal legislative amendment was admissible and the appellant had standing.
Extracted holding
The appeal was admissible only insofar as the formal requirements were met; the appellant had standing as a taxpayer directly and virtually affected by the tax rules.
Extracted reasoning
The act was a cantonal normative act directly open to abstract review; the appellant was sufficiently affected and had a protected interest because the new rules could apply to him as a resident taxpayer.