Questione giuridica chiave
Whether the public law appeal was admissible against the refusal to renew the residence permit.
Decisione estratta
The appellant had no enforceable right to renewal, so the public law appeal was inadmissible.
Motivazione estratta
Her spouse had only an annual residence permit and no durable right of presence; therefore neither federal law nor the ECHR conferred a right to the permit.