002/19-09-2007-ECCC-OCIJ ЮŲŠ / No: D427 Communication Inside the Divisions 142. Inside the divisions, communication followed the command structure, with commanders usually communicating with their direct superiors and subordinates. Commanders reported to their superiors on various matters and received orders from them.431 Everyday communication was often carried out through the use of portable radios,432 although messengers,433 telegrams,434 and meetings435 were also used. F. DISCIPLINE 143. RAK imposed upon its troops and commanders a disciplinary regime that provided for different means of monitoring and punishment. 144. Criticizing and self-criticizing sessions were held in military units where troops were expected to criticize their mistakes and also implicate their comrades.436 This technique of control and discipline was also used in meetings organized by the General Staff.437 145. When bad conduct was detected, several forms of punishment were used to discipline troops. Besides punishments inside the military units themselves,438 troops would be sent to reeducation439 or worksites440 or were killed.441 Commanders that disobeyed orders or were considered traitors were arrested and subsequently killed.442 For purposes of interrogation and arrest of alleged traitors, RAK units either used installations of the Centre like S-21443 or their own security offices.444 G. PARTICIPATION OF RAK IN PURGES 146. As part of its responsibility for internal security, RAK carried out purges under the orders of the CPK Centre. 147. During the official July 1975 RAK gathering the Chairman of the High-Level Military Committee of the Party declared that the Revolutionary Army must defend the country against “internal enemies”, whom he instructed it was the Revolutionary Army’s duty “to continue to smash”.445 During RAK meetings of secretaries and deputy secretaries of divisions and independent RAK regiments the measures discussed included purges of “nogood elements”.446 Extraordinary Chambers in the Courts of Cambodia, National Road 4, Choam Chao, Dangkao Phnom Penh Mailing address: P.O. Box 71, Phnom Penh; Tel: +855(0)23 218914 Fax: +855(0) 23 218941. 39