Report of Investigation Division by H. Kanemitsu (SCAP), dated November 12th, 1946; on Hosaka's location and the activities he led in the Osaka Office during WW2.
Report of Investigation Division by L.H.Barnard (SCAP), dated November 8th 1946; on the allegations that Ishii Shiro and a member of the Imperial family engaged in activities in China that would characterise them as a war criminals.
Report of Investigation Division by L.H.Barnard (SCAP), dated October 14th, 1946; on the military and biographical histories of Honji Yamaguchi and Shiro Yamashita.
Report of Investigation Division by Harold A. Small (civilian investigator), dated September 4th, 1946 on the military and biographical history of subjects complied with by Japanese Government.