Kernrechtsfrage
Whether the psychiatric expert report was unusable because it was prepared by the partner of the appointed expert without prior notice.
Extrahierter Entscheid
The report remained usable despite the irregular substitution; no concrete bias or valid challenge grounds were shown.
Extrahierte Begründung
The court held that the substitution was not rule-compliant, but the insured person did not show that she would have proposed another expert or that the psychiatrist lacked qualifications. The content of the report did not reveal impartiality or bias.