Question juridique clé
Whether the cantonal service had standing to file a subsidiary constitutional appeal against the revision judgment
Solution extraite
The service lacked a legally protected interest and therefore had no standing to bring the subsidiary constitutional appeal.
Motifs extraits
A public authority may use this remedy only if it invokes protected autonomy, existence, territorial integrity, or acts like a private party. The service is merely an administrative unit with no autonomy and no fundamental-rights standing.