- 68 d. HIV positive prisoners 128. At Larissa Prison, the delegation met an HIV positive prisoner who had been transferred to this prison for a court hearing. Due to his HIV status, this prisoner was kept in a segregation cell, which was damp, cold (no heating) and without functioning artificial lighting and minimal access to natural light (see paragraph 139). He was offered access to outdoor exercise for several hours per day. The delegation noticed that although the prisoner concerned had been separated due to a health problem, this very health issue and the resulting vulnerability were not taken into account when deciding on the cell in which he would be held. He should not have been placed in a cell with material conditions even worse than those in the rest of the establishment, as this could well be detrimental to his already compromised health status and weakened immune system. In the view of the Committee, there is no public health justification for segregating prisoners solely because of their HIV status.70 However, given the current situation in Greek prisons, with severe overcrowding, poor material and hygienic conditions, lack of medical confidentiality and high levels of prejudice against people living with HIV, it might indeed be tolerable for HIV positive prisoners to be accommodated separately, as long as this accommodation offers conditions conducive to their health and well-being.71 The CPT recommends that, if a decision is taken to segregate a prisoner due to his/her HIV status, the prisoner be placed in appropriate conditions according to his/her needs. e. drug treatment 129. There is still no nationwide comprehensive approach towards treatment for drug addiction in the Greek prison system.72 At present, two country-wide organisations, which also operate programmes in the community, are working in a number of prisons. The Organisation Against Drugs (OKANA) provides substitution treatment, such as methadone and buprenorphine, to those prisoners who had already started substitution treatment before entering prison; but the organisation can currently not enrol any new prisoners on substitution programmes. The CPT invites the Greek authorities to consider the possibility of initiating such programmes in prisons. The Centre for the Treatment of Drug-dependent persons (KETHEA), provides psychosocial counselling and motivational support for prisoners, but without any substitution treatment. However, KETHEA does not operate in all prisons. 70 71 72 See: CPT Standards (rev. 2011), [CPT/Inf/E (2002) 1 - Rev. 2011], section II, Health-Care Services in Prisons, d.) ii, paragraph 56. The Central Greek Prison Hospital in Korydallos provides anti-retroviral medication to all HIV positive prisoners, who are in need of this treatment. See also CPT/Inf (2010) 33, paragraphs 138 and 139.