Questione giuridica chiave
Whether the subsidiary constitutional appeal was admissible against the cantonal judgment on a study residence permit.
Decisione estratta
The appeal was inadmissible because the applicant had no legal entitlement to the permit under federal or international law.
Motivazione estratta
A constitutional appeal requires a legally protected interest. Since no entitlement to a residence permit existed, Art. 9 Cst. did not itself create standing.