Questione giuridica chiave
Whether the administrative appeal against revocation of the residence permits was admissible
Decisione estratta
The appeal was admissible insofar as it challenged the cantonal judgment confirming revocation, but inadmissible as to the request to annul the first-instance decision directly.
Motivazione estratta
Revocation decisions can be challenged by administrative-law appeal; however, the devolutive effect excludes direct challenge to the lower decision.