CAT/OP/PER/1 59. When reviewing the health records in Yanamayo, the Subcommittee noted that respiratory diseases, including pneumonia, are quite prevalent. It is essential to prevent these diseases by taking measures to counteract the cold weather that prevails in the region. 3. Registers 60. The Subcommittee observed that each prison uses different methods to record information about persons deprived of their liberty, and that these methods are largely manual and the information often incomplete and scattered. 61. The Subcommittee recommends: (a) intensifying efforts to establish a uniform, computerized register for the whole country that contains information on admission, release, disciplinary measures, judicial decisions and other relevant data on the situation of persons deprived of their liberty; (b) ensuring that clinics and first aid stations maintain records of all medical interventions and of infectious diseases, traumatic injuries and deaths; and (c) creating a central database containing information on deaths of persons deprived of their liberty, with a view to adopting appropriate public health policies. 4. Ill-treatment and reprisals 62. Persons deprived of their liberty interviewed in various prisons informed the Subcommittee that they had been subjected to ill-treatment, including insults, arbitrary punishment and harassment, by prison staff. In Yanamayo, for example, they reported that non-prohibited items such as pans, furniture and craftwork were confiscated during searches and craftwork that they had made themselves was destroyed. Several individuals said that they worried that prohibited objects, such as mobile phones, would be planted during the searches, so that action could be taken against them in reprisal for having lodged a complaint. 63. The Subcommittee observed a general fear of reprisals among persons deprived of their liberty. Some claimed that complaining about their conditions of detention and even speaking to the Subcommittee could lead to reprisals in the form of, for example, inspecting of cells and confiscation of belongings, visits being cancelled, verbal and/or physical assault and transfer or the threat of transfer to another prison in a remote region with harsher conditions. In this regard, the possibility of transfer to Challapalca prison serves a symbolic purpose as a source of control and widespread fear. 64. One person deprived of their liberty reported having lodged a complaint of illtreatment and torture with prosecutors. As a result, the detainee suffered constant harassment and barely left their cell out of fear. Although a forensic medical examination confirmed that there had been physical assault, the guards responsible continued to work in the prison. 65. In some prisons, the Subcommittee heard allegations of individual and collective reprisals taken after persons deprived of their liberty requested a visit by the Office of the Ombudsman to complain about their conditions of detention, or asked prosecutors to help them report ill-treatment or torture. In Yanamayo, the Subcommittee observed that persons deprived of their liberty were reluctant to serve as prisoner representatives since the previous representative had been transferred just for having lodged collective complaints concerning such issues as the quality of the food. 66. The Subcommittee recommends that measures be taken, including regular training and refresher courses on human rights, to prevent ill-treatment of prisoners by prison staff. The State must guarantee the prompt and impartial investigation of all complaints of ill-treatment and torture in the prison system. 67. Persons deprived of their liberty should be informed of their right to submit complaints, directly and in confidence, to the prison authorities. This information should be provided in writing on admission and should be publicized on prominently displayed posters. Persons deprived of their liberty who make complaints, including for torture or ill-treatment, should not suffer reprisals for doing so. The competent 10 GE.17-13638