Question juridique clé
Whether the public law appeal is admissible against revocation of an EU/EFTA residence permit
Solution extraite
The appeal in public law matters is admissible because the applicant could potentially derive a residence right from the EU free movement agreement; the subsidiary constitutional appeal is therefore excluded.
Motifs extraits
Admissibility depends on whether the asserted treaty right exists in substance, which belongs to the merits, not the threshold jurisdiction test.