34 The expert witness stated that prisoners awaiting execution are permitted two visits by family and friends per week for fifteen minutes each. They must request all visits in writing using special forms that are made available every ten days. This procedure makes it extremely difficult for prisoners to see their lawyer in the event of an emergency. In the case of inmates detained awaiting trial, they are allowed even fewer visits and are only given request forms once a month. These forms are checked and censored by the relevant prison officials before being sent by mail to the person the prisoner wishes to see. With respect to medical services for prisoners, Gaietry Pargass stated that there is only one doctor available to treat the entire prison population. For those prisoners awaiting execution, there is a prison official available with basic nursing training, who visits once in the morning and once in the evening to administer medication for minor pains and illnesses like headaches. The expert witness concluded that prisoners live in overcrowded conditions during approximately two to six years between arrest and conviction. Although they often complain about the conditions, very little can be done since there is not enough space in Trinidad and Tobago’s prisons. * * * c) ASSESSMENT OF THE EVIDENCE 78) The Court will now assess the probative value of the documents and expert reports submitted to it. The evidence presented during all stages of the proceedings in the three cases has been integrated into a single body of evidence and will be assessed en bloc. 88 79) With respect to the evidence submitted by the Inter-American Commission in the three cases, the Court considers that: a) As regards the documents related to the trial, judgment and appeal before the domestic tribunals, attached as exhibits to the Commission's Applications in each case, the Court has confirmed that they possess the requisite authenticity, as they contain no inconsistencies and meet the minimum standard of admissibility, inasmuch as they originate from reliable sources, and therefore possess clear probative value. b) In regard to the relevant domestic legislation of Trinidad and Tobago, this Court considers that it is admissible as documentary evidence and that it can serve as a useful means to corroborate, where relevant, the facts established in the Applications and the contentions of the parties in the present Case. 88 Cf. I/A Court H.R., Bámaca Velásquez Case. Reparations, supra note 63, para. 22; I/A Court H.R., Cantoral Benavides Case. Reparations, supra note 63, para. 34; and I/A Court H.R., The Mayagna (Sumo) Awas Tingni Community Case. Judgment of August 31, 2001. Series C No. 79, para. 98.