Kernrechtsfrage
Whether the appeal against the interlocutory order on the expert examination was admissible before the Federal Supreme Court.
Extrahierter Entscheid
The appeal was not admissible because the contested decision did not concern the disqualification of a specific expert and the alleged defects could be raised later against the final decision.
Extrahierte Begründung
Under Art. 93 BGG, only decisions on expert disqualification may be separately challenged; other objections to the appointment or modality of an expert examination are reviewed together with the final decision. No irreparable legal disadvantage was shown.