Key legal question
Admissibility of the public law appeal against refusal to let the appellant stay in Switzerland pending proceedings
Extracted holding
The public law appeal was inadmissible because the appellant could not credibly claim a statutory or treaty-based entitlement to the requested permit.
Extracted reasoning
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.