Questão jurídica principal
Whether evidence complaints concerning recusal and bias could be reviewed under Art. 8 ZGB.
Decisão extraída
Art. 8 ZGB did not apply because the evidence rules at issue were based on cantonal law; the appeal was therefore inadmissible on that point.
Fundamentação extraída
Art. 8 ZGB governs evidence only for rights and legal relationships governed by federal civil law. Where cantonal law regulates the matter, evidence questions are governed by cantonal law, subject only to constitutional minimum guarantees.