Several members of the battery were victims of war crimes. In what would be the first war crimes trial after the war, at Yokohama, Tatsuo Tsuchiya was found guilty of mistreatment of several battery members which resulted in deaths at Mitsushima POW Camp at Hiraoka. Several other guards at that camp would also be executed or imprisoned for their roles in the deaths and ill-treatment of battery members. In other Yokohama War Crimes Trials, several battery members testified against Japanese guards for the ill-treatment of fellow battery members at Kanose and Fukuoka Branch camps.