Key legal question
Whether the subsidiary constitutional complaint was admissible against the cantonal judgment on tax remission.
Extracted holding
The complaint was admissible only as a subsidiary constitutional complaint; ordinary public-law appeal was excluded for tax remission matters.
Extracted reasoning
Cantonal final decisions on tax remission are not subject to the ordinary public-law appeal under Art. 83 lit. m BGG. Constitutional complaints remain available, though no arbitrariness review exists for direct federal tax remission because there is no entitlement.