Kernrechtsfrage
Whether the public-law appeal against the refusal of a credibility expert opinion was admissible despite the incidental nature of the cantonal decision.
Extrahierter Entscheid
No irreparable legal harm was shown because the request could be renewed before the trial court and challenged later against the final judgment.
Extrahierte Begründung
Decisions on evidence generally do not cause irreparable harm. The requested expert evidence was not time-sensitive in the sense of being lost if postponed, and no exceptional ground justified immediate review.