Kernrechtsfrage
Whether the complaint against the interlocutory decision on expert recusal was admissible under Art. 92 BGG.
Extrahierter Entscheid
The appeal against the separately appealable interlocutory decision on recusal was admissible without requiring proof of irreparable harm.
Extrahierte Begründung
Decisions on recusal under Art. 92 BGG are directly appealable; the irreparable-harm requirement of Art. 93(1)(a) BGG does not apply.