Kernrechtsfrage
Whether the public-law appeal was admissible against the denial of party status in a denunciation-based administrative procedure.
Extrahierter Entscheid
The appeal was admissible only to the limited extent of challenging the denial of party status.
Extrahierte Begründung
A complainant generally cannot attack a mere non-action or refusal to act on a denunciation by public-law appeal, but may still contest being wrongly denied party status.