Question juridique clé
Whether the Federal Supreme Court could hear the appeal against the interlocutory order refusing production of evidence
Solution extraite
No immediate review was available because the appellant did not show a legally irreparable harm under Article 93(1)(a) LTF.
Motifs extraits
Orders on evidence are generally not immediately appealable; the appellant bears the burden of demonstrating a concrete risk of irreversible legal prejudice, which was not established here.