State party to investigate in good faith and within the imparted deadlines all the allegations of violations of the Covenant made against it and its judicial authorities, and to make available to the Committee all the information at its disposal. In the circumstances, due weight must be given to the authors' allegations/ to the extent that they have been sufficiently substantiated. 8.2 With respect to the alleged violations of the Covenant, three issues are before the Committee: (a) whether the authors' legal representation and the course of the judicial proceedings amounted to a violation of their rights under article 14; (b) whether the fact of having spent over 13 years on death row constitutes in itself cruel, inhuman and degrading treatment within the meaning of article 7; and (c) whether the authors' alleged ill-treatment during detention and on death row violates article 7. 8.3 With regard to the claims relating to article 14, the Committee considers that the authors have not corroborated their allegations that their identification parade was unfair. Similar considerations apply to Mr. Barrett's claim that the preparations for his defence and his legal representation were inadequate, and to Mr. Sutcliffe's claim that he was denied access to counsel prior to his formal indictment. The Committee notes, in this context, that authors' counsel has not put forward any claims under article 14. 8.4 The authors have claimed a violation of article 7 on account of their prolonged detention on death row. The Committee starts by noting that this guestion was not placed before the Jamaican courts, nor before the Judicial Committee of the Privy Council, It further reiterates that prolonged judicial proceedings do not per se constitute cruel, inhuman and degrading treatment, even if they may be a source of mental strain and tension for detained persons. This also applies to appeal and review proceedings in cases involving capital punishment, although an assessment of the particular circumstances of each case would be called for. In States whose judicial system provides for a review of criminal convictions and sentences, an element of delay between the lawful imposition of a sentence of death and the exhaustion of available remedies is inherent in the review of the sentence; thus, even prolonged periods of detention under a severe custodial regime on death row cannot generally be considered to constitute cruel, inhuman or degrading treatment if the convicted person is merely availing himself of appellate remedies. A delay of 10 years between the judgement of the Court of Appeal and that of the Judicial Committee of the Privy Council is disturbingly long. However, the evidence before the Committee indicates that the Court of Appeal rapidly produced its written judgement and that the ensuing delay in petitioning the Judicial Committee is largely attributable to the authors. 8.5 Concerning the allegations of ill-treatment during detention and on death row, the Committee deems it appropriate to distinguish between the individual claims put forth by the authors. While Mr. Barrett has made claims that might raise issues under articles 7 and 10, paragraph 1, of the Covenant, in particular concerning alleged solitary confinement at the Ocho Sios police station, the Committee considers that these have not been further substantiated and finds no violation of article 7 or article 10, paragraph 1. 8.6 Mr. Sutcliffe has alleged that he was subjected to beatings in the course of the preliminary investigation, and that he suffered serious injuries at the -250-