Question juridique clé
Whether the complaint in public law is admissible against the refusal to renew residence permits.
Solution extraite
It is inadmissible because no statutory or treaty-based entitlement to renewal exists.
Motifs extraits
Without a legal right to the permit, Art. 83 lit. c ch. 2 BGG excludes the public-law complaint; no entitlement can be derived from Art. 8 ECHR or any other norm.