002/19-09-2007-ECCC-OCIJ ЮŲŠ / No: D427 “enemies”, and were often either reeducated or killed.633 Additionally, it appears that detainees were routinely questioned about “immorality” during interrogation at security centres.634 Occurrences of “immorality” and their punishments were reported to superiors by CPK cadre. 635 However, around mid-1978, Office 870 issued a circular to the zone level “instructing that light and medium-level prisoners be released” and “moral turpitude” prisoners were indeed released. 636 “Purges” 192. Internal “purges” occurred increasingly in parallel with the evolution of this policy. To “purge” meant to politically purify by means of a range of sanctions, from being demoted or reeducated, to being smashed.637 This applied to both members of the Party and nonmembers. A number of situations under investigation may be described factually as purges. In particular, the Co-Investigating Judges were seized of two specific purge phenomena which occurred during the CPK regime: the purge of the Old and New North Zones; and the purge of the East Zone. Purge of the Old and New North Zones 193. Following the decision of 30 March 1976 to conduct “smashings” inside the revolutionary ranks,638 purges were implemented inter alia by mass killings of Party members in the North Zone and in Sector 106, from the end of 1976. This escalated dramatically in early 1977 and continued until the end of that year. 194. Until April 1975, the North Zone (then coded Zone 304)639 comprised the post-April 1975 Sectors 41, 42, 43 and 106.640 It was then under the control of Secretary Koy Thuon, and Ke Pork 641 as Deputy Secretary (both were members of the Central Committee).642 After April 1975, the North Zone (re-designated Zone 303) included only Sectors 41, 42 and 43, as Sector 106 became autonomous.643 Koy Thuon was transferred to the Centre and became Minister of Commerce644 at which time Ke Pork replaced him as North Zone Secretary.645 This remained the situation until the intensification of purges in 1977. In the context of these purges, Ke Pork initially became Secretary of a re-enlarged North Zone, reincorporating Sector 106,646 and Chan Sam alias Kang Chap alias Se was transferred from his previous posts in the Southwest Zone647 to become Zone Deputy Secretary and concurrently Secretary of Sector 106.648 Later in the year, a new North Zone (coded 801)649 was created. It was comprised of Sector 106 and the hitherto autonomous Sector 103,650 with Se as Secretary.651 Sectors 41, 42 and 43 were renamed the Central Zone, with Ke Pork as Secretary.652 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. 52