E/CN.4/2001/66/Add.2 page 29 79. The Special Rapporteur then visited the large screening cell (triagem), measuring approximately 35 square metres, in which detainees recently transferred to the prison are held before being assigned in accordance with the crimes they had been sentenced for and a psychological portrait. Thirty-one detainees were currently held there, with no mattresses or blankets. Most of them had already been there for three or four days and they believed they would remain until 100 prisoners had been brought in. The Director explained that detainees were held in the block for eight days, time to undergo medical, psychological and other so-called technical examinations. Most, if not all, of the detainees were afraid to speak to the Special Rapporteur because of potential reprisals. It was alleged that, before his visit, the prisoners had been warned by guards not to speak to the Special Rapporteur. Some nevertheless said that they had been beaten upon arrival in Anibal Bruno prison or during the technical examinations (see annex). The latter were also said to be humiliating. F. State of Pará 1. A police station 80. On 9 September, the Special Rapporteur visited the police station of Guama (Maraba). The delegados-in-charge drew his attention to their conditions of work. For example, they were working shifts of more than 14 hours on weekdays and 24 hours on weekends. Material and personnel resources were said to be scarce. In the depository room and the toilet, as well as in the delegados’ office, the Special Rapporteur discovered a number of wooden sticks, including some billiard cues, which were said to be evidence. The Special Rapporteur nevertheless noted that they were not kept in the relevant rooms and did not bear any tag, which led him to find this explanation implausible. In the lock-up, three persons, Fabio Tavares da Silva, Rilton de Silva Soares and Amadeu Almeida Pemental, were detained. They had allegedly been severely beaten at the time of arrest and upon arrival at the police station, and one of them was still in his underwear since he had been arrested at home in the middle of the night and had not been allowed to take clothes with him (see annex). 2. Pre-trial detention facilities 81. On the same day, the Special Rapporteur visited the pre-trial detention centre (seccional urbana) of São Braz, where some 80 persons were currently held in five cells in poor condition. While located in a police station, the cells were said to be guarded by officers from the penitentiary system as they were meant for detainees pending trial and therefore under the jurisdiction of the State Secretariat for Justice. Each cell, measuring approximately 14 square metres, held 16 persons. Detainees were sleeping on the bare concrete floor with no mattresses and very few blankets. Personal belongings brought, for example, by their relatives were said to be kept by the guards. Some detainees said that they had had to pay guards to receive personal items, such as toothpaste or soap, brought by their families in order to get them. 82. According to the testimonies, the detainees were never let out of their cells, except when their lawyer or relatives visited. The Special Rapporteur noted that the skin of most of the detainees was indeed very pale. The officer-in-charge of the lock-up confirmed that the infrastructure did not allow direct exposure to natural light for detainees, despite the fact that