
The exact figures for the number of class-B and -C trials in the Pacific, as well as the number of defendants and their sentences, are difficult to identify with certainty. Yuma Totani gives the following breakdown, based on Japanese government figures:
- The United States – 456 trials against 1,453 suspects at Guam, Kwajalein, Manila, Shanghai and Yokohama. Philip R. Piccigallo, writing in 1979, gave the numbers as 474 trials of 1,409 defendants with 1,229 convictions and 163 death sentences. Of the trials, 319 were held at Yokohama (996 defendants, 854 convictions, 51 death sentences), 11 in Shanghai (75 defendants, 67 convictions, 10 death sentences), 97 in the Philippines (215 defendants, 195 convictions, 92 death sentences), and 47 in the Pacific Islands (123 defendants, 113 convictions, 10 death sentences). The trials commenced with the prosecution of General Yamashita in Manila in September 1945 and continued until the last trials at Yokohama in October 1949. Both the US Army and Navy conducted trials, following slightly different procedures. The army conducted the trials in the Philippines (prior to independence on 4 July 1946), Shanghai and Yokohama, while the navy conducted the trials on the American Pacific Islands such as Guam.
- The Netherlands – 448 trials against 1,038 suspects at Ambon, Balikpapan, Banjarmasin, Batavia (modern Jakarta), Hollandia (Jayapura), Kupang, Makassar, Manado, Medan, Morotai, Pontianak and Tanjung Pinang. Robert Cribb also gives the numbers of 1,038 suspects and 448 separate trials, and states that there were 236 death sentences, 747 prison terms, and 55 acquittals. The most significant Dutch court was the Temporaire Krijgsraad (temporary courts-martial) in Batavia, which tried a third of the Dutch cases. Those sentenced to prison terms were held at Cipinang prison in Batavia (Jakarta), those sentenced to death executed by firing squad. The Dutch trials were naturally overshadowed by the civil war in the Netherlands East Indies between the colonial authorities and the Indonesian Republic under Sukarno, which the Indonesian Republic was steadily winning. The Dutch trials were later criticised (including by a former judge at Batavia) for focusing too much on European victims, suppressing evidence, and taking too little trouble to confirm the accuracy of the evidence it did allow.
- The United Kingdom – 330 trials against 978 suspects at Alor Setar, Hong Kong, Jesselton (Kota Kinabalu), Johore Baru, Kuala Lumpur, Labuan, Penang, Rangoon (Yangon), Singapore and Taiping. Philip R. Piccigallo gives the numbers as 306 trials of 920 defendants, with 811 convictions, 279 death sentences handed down, and 265 death sentences carried out. The British trials began in Singapore on 21 January 1946 and continued into late 1948.
- Australia – 294 trials against 949 suspects, at Ambon, Morotai, Labuan, Wewak, Darwin, Rabaul, Singapore, Hong Kong, and Manus Island (specifically, Los Negros) between November 1946 and April 1951. Of the defendants, 280 were acquitted and 644 were convicted; 138 were executed – 114 by hanging, 24 by shooting – and 498 given prison sentences of varying lengths. David Sissons notes that as some of the defendants were in more than one trial, the total number of persons tried was 814. For this and the additional reason that 2 condemned men died in custody, the total number executed was 138.
- Nationalist China – 605 trials against 883 suspects at Beijing, Nanking (Nanjing), Guandong, Hankou, Jinan, Shanghai, Shenyang, Taipei, Taiyuan and Xuzhou. Philip R. Piccigallo gives the numbers as 605 trials, 883 accused, 504 convictions, and 350 death sentences. The Chinese trials proceeded from October 1946 to February 1949, shortly before the Nationalist Chinese Government was defeated by the Chinese Communists.
- The Philippines – 72 trials against 169 suspects at Manila. Beatrice Trefalt gives the numbers as 151 defendants, 73 trials, 137 guilty verdicts, and 79 death sentences. The Philippines took over the class-B and -C trials process from the US on 1 January 1947, and most of the defendants were prosecuted for crimes against civilians. The prison terms were served at New Bilibid Prison in Muntinlupa, Manila, and the executions carried out there by hanging.
- France – 39 trials against 230 suspects at the Permanent Military Tribunal in Saigon between 1945 and 1950. Philip R. Piccigallo gives the same numbers, as well as 198 convictions, 63 death sentences passed, and 26 death sentences carried out. Some death sentences were handed down in absentia. The French trials, like the Dutch, were hampered by a war of independence in the colony. In the French case, the trials of Japanese war criminals became entangled with the trials of alleged collaborators, many of whom were members of the Viet Minh communist insurgency.
The exact number of defendants will probably never be known, as some were tried by two countries. An example is Lieutenant General Nishimura Takuma, tried by both the United Kingdom and Australia for different war crimes in Malaya. Australian researchers have, at different times, given the total number of defendants at 5,677 or 5,706 rather than 5,700. Other sources put the total number of death sentences at 1,041 or 984, although all agree that not all the death sentences were carried out; some prisoners escaped, committed suicide, or died in custody from natural causes. The total number executed may have been around 920. Sandra Wilson states that 475 defendants were sentenced to life imprisonment and 2,944 to other prison terms.
Other Allies participated in the process but did not conduct any trials. Canada actively supported Britain’s trials in Hong Kong, where Canadian troops had been taken prisoner, but conducted no trials of its own in the Far East. Nor did New Zealand, which accepted British, American and Australian control of the class-B and -C trials.