Records of juvenile cases and civil trials that attracted social attention were destroyed by courts in various regions. Records of six civil trials were destroyed due to the "expiration of the retention period" Experts point out that "one cannot help but think that it was done administratively without sufficient confirmation" The Supreme Court is investigating the circumstances of the disposal, including the case of the Oita District Court, and will soon publish a report and take measures to prevent recurrence.

The six cases that were discarded included records of a court case in which the prefecture admitted responsibility for an accident in which a male student collapsed and died.