Kernrechtsfrage
Whether the public-law appeal was admissible despite Art. 83 lit. c BGG.
Extrahierter Entscheid
The appeal was admissible because the appellant could invoke a potential statutory entitlement under Art. 43 AuG.
Extrahierte Begründung
For admissibility, a potentially existing right suffices; whether the substantive conditions are met belongs to the merits.