Question juridique clé
Whether the Canton of Zurich had standing to appeal the cantonal judgment under the Internal Market Act and BGG
Solution extraite
The canton had standing only to challenge the general legal assessment of the claimed market-access right, not the individualized qualifications of the respondent.
Motifs extraits
A canton may rely on Art. 89 para. 1 BGG only if it is affected in its own sovereign interests. An individual licensing decision usually does not suffice, unless it has precedent effect and broad regulatory significance. That threshold was met only for the abstract market-access question.