In criminal law, kidnapping is the unlawful taking away or transportation of a person against that person's will, usually to hold the person unlawfully. This may be done for ransom iin furtherance of another crime, or in connection with a child custody dispute.
In some countries such as the United States a large number of child abductions arise after separation or divorce when one parent wishes to keep a child against the will of the other or against a court order. In these cases, some jurisdictions do not consider it kidnapping if the child, being competent, agrees.
Stockholm syndrome, or capture-bonding, is a psychological phenomenon described in 1973 in which hostages express empathy and sympathy and have positive feelings toward their captors, sometimes to the point of defending and identifying with the captors.