Kernrechtsfrage
Whether the appeal could also challenge the earlier expert-designation order of 7 October 2005
Extrahierter Entscheid
The prior designation order could be attacked incidentally because the later refusal to recuse the expert was linked to it and the earlier order would otherwise remain enforceable.
Extrahierte Begründung
The Court distinguished accessory challenge from impermissible horizontal annulment and held that setting aside the recusal refusal would restore the prior procedural situation, requiring a new expert appointment.