- 74 142. Diavata Prison has four disciplinary cells, two for women and two for men, which usually accommodated prisoners for long periods of time for their protection (such as victims of inter prisoner violence, sex offenders, and former police officers) and only rarely for disciplinary sanctions. Due to extremely limited space, protection prisoners took priority. Inmates placed in these cells complained that they did not have access to outdoor exercise. 143. The CPT recommends that the Greek authorities immediately ensure that all prisoners placed in segregation, for whatever reason, are offered at least one hour of outdoor exercise every day. The outdoor exercise facilities should be sufficiently large for prisoners to exert themselves physically. Steps should also be taken to ensure that all cells in segregation units of the establishments visited have adequate access to natural light (i.e. sufficient to read by during the day in normal conditions). Further, the recommendations already made in paragraphs 108 and 110 apply equally to the conditions of detention in segregation units. d. searches 144. As regards searches for drugs, at Korydallos Female Prison, they were carried out on all prisoners coming back from the outside. However, only if there was a reasonable suspicion was the prisoner concerned required to hand in her own clothes to be checked. Vaginal searches and laxatives were not used. Urine tests were occasionally performed. Prisoners who refused to undergo a urine test would be placed in a cell on their own for up to three days. Such a measure appeared to be punitive rather than a means to secure a urine sample. By contrast, at Diavata Prison, prisoners were systematically subjected to invasive search procedures. Every time when returning from outside the prison, inmates would be routinely stripsearched and then placed in a disciplinary cell for two days or more. Female inmates were made to squat and urinate. Strip searches were even performed when returning from the church service, which is located within the prison but outside the wings. The CPT considers that such drastic measures should be applied only in exceptional cases, where there are reasonable grounds to suspect them of attempting to smuggle drugs or other contraband into the establishment. The CPT recommends that the Greek authorities review the current practice of searches at Diavata Prison, in the light of the above remarks. 145. At Larissa Prison, the delegation was informed that laxatives were still used with regard to those prisoners who were placed under observation because of a suspicion that they tried to smuggle drugs in the prison. The CPT would like to recall its recommendation made in the report on its 2011 visit to Greece77, that the use of laxatives should be ended. The CPT would like to receive information from the Greek authorities on steps taken in this regard. 77 See also CPT/Inf (2012) 1, paragraph 51.