“There were over 5,000 prisoners in PPC No. 13 in 1967, which then increased to over 20,000 by 1990. PPC No. 12 was a bit smaller than PPC No. 13. I think the number of prisoners in PPC No. 12 was around 15,000.The number of prisoners increased because anyone categorized as a revisionist along with their entire immediate family and relatives were brought there. PPC No. 12 was closed in October, 1991 and PPC No. 13 was closed in the fall of 1992. When prisoners began to be relocated, those officials facing imminent retirement were instructed to stay in the post until the end of 1992 to assist the process of prisoner relocation. PPC No.’s 12 and 13 were closed on instructions from Kim Il-sung who feared that the PPC might be detected by the outside world. PPC No. 12 and 13 were near from the North Korea/China border and railroad. The PPC in Hweryong (22) is deeply hidden inside a mountain. Most prisoners from PPC No. 12 and 13 were driven to PPC No. 22. PPC No.22 was established later than PPC No. 12 and 13, in 1975 or 78.” (A08, former SSA officer at PPC No. 12 and 13 1967~1992) The information concludes that PPC No. 12 and 13, rather near to the border with China, were closed for fear of detection by the outside world. Prisoners in PPC No.’s 12 and 13 were relocated to PPC No. 22 in Hweryong. It is confirmed that PPC No. 22 was expanded in 1990 to accept the prisoners from PPC No. 12 and 13. Camp officials and guards retiring at that time settled in the areas that formerly were occupied by PPC. “I retired from the service in October, 1992 when PPC No. 13 was closed. At that time, large number of officials retired and remained in the areas for living after retirement. The best houses were occupied according to rank of retiring officials. In the beginning, the PPC was under the control of the 9th Bureau of the Police 45