During December 25-30, 1949, twelve former member of the Japanese armed forces were tried in Khabarovsk, charged with preparing and employing the bacteriological weapon. -Materials on the Trial of Former Servicemen of the Japanese Army Charged With Manufacturing and Employing Bacteriological Weapons. Moscow: Foreign Languages Publishing House, 1950.
The following scenes were shown on the screen: special receptacles being attached ot the planes, with a caption explainint that these receptacles contained plague-infected fleas... An aircraft flying over the enemy's positions. On the ground could be seen Chinese troops in movement and an inhabited place... A plane is seen returning to the airfield. this is followed by the caption 'Operation Concluded'. Ishii and Ikari alight from the plane. Then comes the caption, 'Results'. A Chinese newspaper is shown on the screen, with a Japanese translation. The Chinese paper says that a severe plague epidemic has broken out suddenly in the Nimpo area. - Testimony of Lieutenant Colonel Nishi Toshidi, formerly Chief of a division of Detachment (Unit) 731