Kernrechtsfrage
Whether the cantonal custody allocation to the mother violated constitutional and Convention rights.
Extrahierter Entscheid
No. The Federal Court held that stability and the child's best interests justified leaving custody with the mother.
Extrahierte Begründung
Custody must serve the child's welfare, not sanction a parent's conduct. The mother had effectively cared for the child since separation, the parents were otherwise equally fit, and maintaining the existing living arrangement best preserved stability.