Questão jurídica principal
Whether the public-law appeal was admissible despite the foreigner-law exclusion clause.
Decisão extraída
The appeal was admissible because the appellant advanced a plausible potential right to a residence permit under Art. 50(1)(a) LEtr.
Fundamentação extraída
For admissibility, a merely arguable potential entitlement suffices; the merits of the entitlement are assessed later.