Questão jurídica principal
Whether the cantonal court violated federal law by refusing to order a child psychiatric expert opinion before deciding custody
Decisão extraída
The refusal was not unlawful because the cantonal court had sufficient evidence and could rely on anticipatory assessment of evidence.
Fundamentação extraída
Under the investigative maxime the court must clarify the facts ex officio, but it may refrain from further evidence if the existing record permits a sound decision; the appellant did not show that the refusal was arbitrary.