The Supreme Court ruled on Thursday in favor of a U.S.-based Japanese father seeking to reunite with his teenage son, who was taken by his estranged wife to Japan in 2016, concluding that the wife¡¯s dogged refusal to abide by an earlier court order mandating the minor¡¯s repatriation amounts to her ¡°illegally confining¡± him.

The ruling is believed to be the first by the Supreme Court on cases where return orders by courts have been refused. It is likely to send a strong message regarding domestic legislation that is often slammed as impotent on cross-border child abductions, despite Japan¡¯s commitments under the Hague Convention, following mounting criticism that return orders issued by courts have been ignored.

The Supreme Court sent the case back to the Nagoya High Court.