Kernrechtsfrage
Whether refusal to order a credibility expert violated the right to be heard
Extrahierter Entscheid
The complaint was inadmissible because it was insufficiently reasoned and the appellant did not show that the existing evidence assessment was arbitrary.
Extrahierte Begründung
A requested evidentiary measure may be refused if the court is already convinced on a non-arbitrary basis; the appellant neither exhausted the cantonal remedy against the investigator's refusal nor demonstrated arbitrariness in the lower courts' credibility findings.