CAT/C/TCD/CO/1 page 13 The State party should also ensure that all medical personnel working with detainees receive adequate training on detecting signs of torture or ill-treatment, in accordance with international standards as set out in the Istanbul Protocol (Manual on Effective Investigation and Documentation of Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment). 36. The Committee notes the State party’s acceptance of the recommendation made in the course of the universal periodic review to ratify the Optional Protocol to the Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment and to establish a national prevention mechanism (A/HRC/WG.6/5/L.4, para. 82)1 and encourages it to take all necessary measures to that end. 37. The Committee recommends that Chad should make declarations under articles 21 and 22 of the Convention. 38. The Committee encourages the State party to involve NGOs, United Nations experts in the field and academic experts in the review of domestic legislation, including the draft criminal code, to bring it into line with the provisions of the Convention. The State party should take the necessary steps to adopt the draft code without delay. 39. The Committee encourages the State party to continue its cooperation with MINURCAT and to seek technical cooperation from the Office of the United Nations High Commissioner for Human Rights in zones that do not fall within the mandate of MINURCAT, in order to implement the recommendations of the Committee, in particular those contained in paragraphs 27 and 35 above, and to embark on the reforms needed to consolidate the rule of law. 40. The State party should establish effective mechanisms to collect data and produce statistics on criminal justice and crime and all statistics relevant to monitoring implementation of the Convention at the national level. The State party should thus provide in its next periodic report the following data, which will facilitate the Committee’s assessment of the implementation of obligations arising from the Convention: (a) Statistics on the capacity and population of every prison in Chad, including data disaggregated by sex and by age group (adults/children) and the number of pretrial detainees; 1 (b) Statistics on violence in detention centres, police stations and gendarmeries; (c) Statistics on complaints of alleged torture, and action taken; (d) Statistics on corruption among law-enforcement officials and penalties imposed; The final document will be issued under symbol number A/HRC/12/5 (http://www.ohchr.org/EN/HRBodies/UPR/PAGES/TDSession5.aspx).