Questione giuridica chiave
Whether the administrative law appeal against the cantonal judgment was admissible
Decisione estratta
The appeal was manifestly inadmissible because the appellants had no enforceable right under federal law or treaty to renewal of a residence permit.
Motivazione estratta
No specific federal provision or international treaty granted a right to renewal; Article 8 ECHR could not be relied on for adult children without assured residence status in Switzerland.