Question juridique clé
Whether the appeal in public law matters against the residence-permit non-renewal was admissible
Solution extraite
The appeal was inadmissible because the appellant had no enforceable right to renewal, or at least did not credibly invoke one.
Motifs extraits
Once abuse of rights under Art. 51(2)(a) AuG is assumed, any claim under Arts. 43 and 50 AuG lapses or never arises. Without a right, Art. 83(c)(2) BGG bars the ordinary appeal.