a bitter 'custody battle' [=a legal fight between divorced parents about who will take care of a child]
He was taken 'into' (police) 'custody' last night and will be charged with murder today.
The witness is 'in protective custody'. [=is being kept in a safe place by the police]
(..) I'll be coming to your home tomorrow evening to conduct an investigation. If I discover that you are, in any way, an unfit parent... I will see to it Sherman is removed from your custody. Permanently. I hope I've made myself clear. Crystal. I'm sorry I bit her, Mr. Peabody. (..)2014 Mr. Peabody & Sherman