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 get in touch with our contacts in Cuba. In the meantime, you get on a plane and get down there. We need that child in our custody by the end of the day. Hey, gentlemen, put down your hammers. It's time for recess. Simon says put your hands on your heads. - Let's go. - Don't fret. (..)2016 TvShow: The Blacklist Title: Alexander Kirk (No. 14): Conclusion Season: 3 Episode 23