Question juridique clé
Whether the appeal against the cantonal decision rejecting expert disqualification was admissible as a challenge to an interim decision.
Solution extraite
Only objections concerning the experts' disqualification under Art. 92 BGG were directly admissible; complaints about expert qualifications, scope of expertise, the Foerster criteria, or costs did not show an irreparable legal harm under Art. 93 BGG.
Motifs extraits
Interim decisions on disqualification are immediately appealable, but other complaints about the conduct or quality of the expert evidence are not. Purely practical disadvantages such as delay or cost are insufficient.