During the International Military Tribunal, 37 witnesses testified for the prosecution. 80 witnesses testified for the defense, including 19 of the defendants. An additional 143 witnesses gave evidence for the defense by written answers to interrogatories. For the defense of the organizations, 101 witnesses were heard before Commissioners elected by the tribunal and 1809 affidavits from other witnesses were submitted. A further six reports were submitted, summarizing many more affidavits.