Key legal question
Admissibility of the public law appeal and of the subsidiary constitutional complaint
Extracted holding
The public law appeal was admissible because the claim could potentially arise under federal law; the subsidiary constitutional complaint was therefore inadmissible.
Extracted reasoning
Whether Art. 49 or 50 LEtr granted a right to renewal was a merits question, not a jurisdictional one, so Art. 83(c)(2) LTF did not bar the appeal.