Question juridique clé
Whether the public law appeal was admissible in a residence-permit revocation/non-renewal case.
Solution extraite
The appeal was inadmissible because no legal entitlement to renewal was shown.
Motifs extraits
Under Art. 83 lit. c BGG, public law appeal is excluded for foreigner-law decisions without an enforceable right. The existing permit had expired, so the dispute concerned renewal. The appellant had no federal-law entitlement, and he did not plausibly establish a Convention- or constitutional-law entitlement based on his wife's status.