A/HRC/42/CRP.1 area that is almost entirely under the control of the Government and Saudi Arabian armed forces. The diagram below of the facility is based on reliable evidence and analysis of satellite imagery. 319 241. Yemeni armed forces from the First Military District arrested all detainees held in al-Tin. Some detainees were taken to al-Tin via the Yemeni armed forces al-Qatn Army Base 45 km west of Seiyoun. The guards at both facilities are Government Military Police from the First Military District.320 At al-Tin, those responsible for interrogations and torture were witnessed to be a mixture of Saudi Arabian and Government of Yemen intelligence officers, and understood by witnesses to be under the supervision of the Saudi personnel.321 Government of Yemen military personnel had access to the Military Prison but not to alTin.322 In all cases investigated by the Group, Saudi Arabian forces and Government of Yemen authorities from the First Military District indicated to witnesses that they had a level of joint control over releases. 242. Al-Tin is understood to have the capacity to hold around 20 people. The Group documented the detainees held there as mainly men, but is also aware that boys as young as 15 years old have been held at the facility. 323 The detainees at al-Tin are separate from the Military Prison population, but there is some exchange between both. At least 12 detainees were held at al-Tin for up to three years.324 At al-Tin, detainees were kept in solitary confinement or two together in a one by one metre room referred to by guards as ‘The Pressure Room.’325 All detainees were subject to what they described as a seemingly random routine of torture inside the rooms and on the grounds of the facility, including forced nudity whilst crawling through dirt with rocks on their back, beatings with guns and sticks, electrocutions, mock executions, and prolonged hanging from the ceiling by their 319 See image below, damage assessment based on UNOSAT-UNITAR damage assessment, 31 January 2019. 320 Confidential Sources on File. 321 Confidential Sources on File. 322 Confidential Sources on File. 323 Confidential Sources on File. 324 Confidential Sources on File. 325 Confidential Sources on File. 57