73 was scarce. They were the object of constant inspections, during which they were beaten, kicked, given electrical shocks and beatings to the soles of their feet with sticks, water was thrown on them, and they were threatened with being killed. Likewise, if they refused to sing the national anthem they were punished.88 197(52) The male inmates, which were rearranged within the criminal center Castro Castro, as well as those that were transferred to Lurigancho or Yanamayo, were object of physical and psychological treatments similar to those described in the previous paragraph.89 The male inmates rearranged in the Miguel Castro Castro Prison were, as a punishment, transferred to the cell known as “the hole”.90 Upon their transfer to the prisons of Lurigancho and Yanamayo the inmates were insulted and even beaten with poles on their backs.91 197(53) The criminal center of Yanamayo is located in Puno, at more than 3,800 meters in height, reason for which the temperature goes several degrees under zero. Inmates did not have enough protection. Besides, they could only receive visits from direct relatives, in visiting rooms with a double fence, and for half an hour a month. Due to the distance of the criminal center the inmates only received visits a couple of times a year.92 197(54) Once the “operative” had concluded, and even after they were transferred to hospitals or other penitentiaries, the inmates were not allowed to communicate with their next of kin and attorneys for several days, and in some cases during weeks or months.93 197(55) For several days the inmates’ next of kin visited hospitals and morgues looking for their loved ones. They tried, unsuccessfully, to obtain information about what had happened within the criminal center, who was alive and who was dead, where they had been transferred, and their next of kin’s state of health. They were 88 Cfr. Different written testimonial statements of the surviving inmates (dossier of appendixes to the petition, appendixes between 82 and 113, folios between 1231 and 1495); and testimonial statement offered by Mónica Feria Tinta in the hearing held on November 14, 2001 before the Inter-American Commission. 89 Cfr. Different written testimonial statements of the surviving inmates (dossier of appendixes to the petition, appendixes between 114 and 209 and between 218 and 237, folios between 1505 and 2401 and between 2467 and 2606). 90 Cfr. Written testimonial statements of Lorenzo Rodas Centeno, Guillermo Lázaro Rojas, Crisineo Neira Torres, Fernando Medina Puma, Amado Yangua Loilla, and Francisco Abad Telo Santos (dossier of appendixes to the petition, appendix 133, folio 1764, appendix 134, folio 1773, appendix 139, folios 1805 and 1806, appendix 140, folio 1828 and 1829, appendix 178, folio 2140, and appendix 192, folio 2260); and written expert opinion offered by the expert José Quiroga (dossier on merits and possible reparations and costs, Volume VII, folio 2149). 91 Cfr. Different written testimonial statements of the surviving inmates (dossier of appendixes to the petition, appendixes between 114 and 209 and between 218 and 237, folios between 1505 and 2401 and between 2467 and 2606). 92 Cfr. Written testimonial statement of Carlos Manuel Torres Mendoza, Pascual Utia Lozano, Máximo Talledo Astudillo, Isidoro Santiago Nunja García, José Ramírez Sánchez, and Agustí Machuca Urbina (dossier of appendixes to the petition, appendixes 125, 130, 132, 196, 219 y 220, folios 1684, 1730, 1735, 1751, 2294, 2475, and 2492). 93 Cfr. Different written testimonial statements of the surviving inmates (dossier of appendixes to the petition, appendixes between 82 and 245, folios between 1230 and 2716).