Although a decision of "not guilty" was obtained, the submitted materials were not returned immediately after the conclusion of the trial and the original documents such as "吉備津彦命兵法之巻" were were reportedly destroyed by firebecause of air raids during the Pacific War.
無罪判決となるも、提出物は裁判が終了してもすぐに返還がかなわず、それら原本は太平洋戦争中の空襲により『吉備津彦命兵法之巻』などを焼失したとされている。