Kernrechtsfrage
Whether the applicant could invoke Art. 8 ECHR to challenge the refusal to renew his residence permit
Extrahierter Entscheid
Yes. Because he had an effective relationship with his minor Swiss children, the appeal was admissible in relation to Art. 8 ECHR.
Extrahierte Begründung
A foreign parent may rely on Art. 8 ECHR when the child has a durable right to reside in Switzerland and the relationship is genuine and effective.