Kernrechtsfrage
Whether the father was denied the right to be heard because he was not informed of the mother's request to terminate joint custody before the first-instance decision.
Extrahierter Entscheid
Yes. He had to be informed in advance and allowed to comment before the custody reallocation decision was issued.
Extrahierte Begründung
Art. 29(2) BV requires timely notice of the issues to be decided and an opportunity to be heard before an intervention in legal status.