Kernrechtsfrage
Whether the complaint against the interlocutory decision on expert recusal was admissible under the Federal Supreme Court Act.
Extrahierter Entscheid
The interlocutory decision on the recusal of a court expert was immediately appealable as a separately notified decision.
Extrahierte Begründung
Decisions on recusal under Art. 92 BGG are directly challengeable and cannot be attacked later; the decision was formally served and therefore qualified as a separately appealable interlocutory decision.