Questione giuridica chiave
Whether the public-law appeal was admissible despite the foreigner-law exclusion and the wife's participation.
Decisione estratta
The appeal was admissible because the appellant could potentially rely on family reunification under Swiss law and on Article 8 ECHR; the wife also had standing.
Motivazione estratta
A potentially enforceable right to a permit suffices to open the appeal route. The spouse was directly affected by the non-renewal and had a protected interest in the outcome.