Moreover, historian Hal Gold has alleged in his work "Unit 731 Testimony" that Prince Takeda had a more active role as "Lieutenant Colonel Miyata" – an officer in the Strategic Section of the Operations Division. Gold reports the testimony of a veteran of the Youth Corps of this unit, who testified in July 1994 in Morioka during a traveling exhibition on Shirō Ishii's experiments, that Takeda watched while outside poison gas tests were made on thirty prisoners near Anda. After the war, a staff photographer also recalled the day the Prince visited Unit 731's facility at Pingfang, Manchukuo and had his picture taken at the gates.