Key legal question
Whether the public law appeal is admissible against revocation of an EU/EFTA residence permit
Extracted holding
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.
Extracted reasoning
Admissibility depends on whether the asserted treaty right exists in substance, which belongs to the merits, not the threshold jurisdiction test.