Questione giuridica chiave
Whether the public-law appeal was admissible despite the immigration exceptions rule
Decisione estratta
The appeal was admissible because the applicants could invoke a potentially protected private-life claim under Article 8 ECHR, so the permit-renewal issue was not excluded at the outset.
Motivazione estratta
Given the long residence in Switzerland and signs of social integration, an enforceable claim could not be ruled out a priori; the existence of the substantive right had to be examined on the merits.