/ɪˈliːɡəl ˈkʌstədi/ – Phrase
Definition: giam giữ bất hợp pháp, giam giữ trái phép.
A more thorough explanation: “Illegal custody” refers to the act of wrongfully or unlawfully taking or holding someone, typically a child, without legal authority or permission. This can include situations where a person is holding a child without proper legal guardianship or custody rights.
Example: The court found that the father had taken the child into illegal custody in violation of the court order.