For this report, DigitalGlobe Analytics examined eleven images collected from 2003 to 2013 of the North Korean political prison facility known as Camp 25 (a.k.a. Kwan-liso No. 25, Political Prison Facility No. 25, No. 25 Chongjin Political Concentration Camp, Susŏng Correctional Center) in Susŏng-dong, Ch’ŏngjin-si, Hamgyŏng-bukto, on the northeast coast of the nation. In this analysis, imagery was compared to identify changes in the organization of the camp, including variations in:
Imagery of these areas could reveal changes that would provide insight into the operational status, prison population and security of Camp 25.