Questione giuridica chiave
Whether the public law appeal was admissible as the applicant could potentially rely on Art. 50 LEtr, and whether the subsidiary constitutional complaint was admissible.
Decisione estratta
The public law appeal was admissible because a potential entitlement under Art. 50 LEtr was arguable; the subsidiary constitutional complaint was inadmissible.
Motivazione estratta
A merely potential right to the permit suffices to open the public law avenue. By contrast, the alleged violations of Arts. 19, 23 and 24 LEtr did not confer a right to the requested permit.