Kernrechtsfrage
Whether the administrative law appeal against refusal to extend the residence permit was admissible.
Extrahierter Entscheid
The appeal was admissible because the appellant could rely in principle on his marriage to a Swiss citizen under Art. 7(1) ANAG.
Extrahierte Begründung
A still-existing marriage to a Swiss citizen generally gives a right to renewal of the residence permit; therefore federal administrative law review was open.