Questione giuridica chiave
Admissibility of the public law appeal against refusal to let the appellant stay in Switzerland pending proceedings
Decisione estratta
The public law appeal was inadmissible because the appellant could not credibly claim a statutory or treaty-based entitlement to the requested permit.
Motivazione estratta
Without an arguable entitlement to the permit, Article 83(c)(2) BGG bars the appeal route; the challenged interim measure was therefore only reviewable for constitutional violations.