(g) The State party should take steps to ensure that the frequency of “major violent incidents” in its federal corrective facilities decreases progressively; (h) The State party should conduct a public and independent study and a policy review of the crowd control methods, at federal and provincial levels, described in paragraph 57, subparagraph (i) above; (i) The State party should fully clarify, if necessary through the adoption of legislation, the competence of the Commission for Public Complaints Against the RCMP (Royal Canadian Mounted Police) to investigate and report on all activities of the Royal Canadian Mounted Police falling within its complaint mandate; and (j) The State party should consider becoming party to the Optional Protocol to the Convention. 59. The Committee requests that the State party provide, within one year, information in response to the Committee’s recommendations in paragraph 58 subparagraphs (d), (e) and (g). 60. The Committee requests the State party to submit its sixth periodic report by the due date of 23 July 2008. SWITZERLAND 61. The Committee considered the fourth periodic report of Switzerland (CAT/C/55/Add.9) at its 645th and 648th meetings, held on 6 and 9 May 2005 (CAT/C/SR.645 and 648), and adopted, at its 661st meeting (CAT/C/SR.661), the following conclusions and recommendations. A. Introduction 62. The Committee welcomes the fourth periodic report of Switzerland, which was prepared in accordance with the Committee’s guidelines. It notes, however, that the report was submitted with a two-year delay. The Committee appreciates the constructive dialogue with the delegation and commends the comprehensive written responses provided to the list of issues, as well as the meticulous responses provided to all oral questions posed. B. Positive aspects 63. The Committee notes the following positive aspects: (a) The ban, proposed by the draft federal law regulating the use of force by police during deportations and during the transport of detainees ordered by a federal authority, on all restraint methods which restrict breathing as well as on the use of irritant or incapacitating sprays; (b) The elaboration of “guidelines relating to forcible deportations by air” (directives relatives aux rapratriements sous constrainte par voie aérienne), which include a provision that medication can be forcibly administered exclusively for medical reasons. It also notes that the Swiss Academy for Medical Sciences (Académie suisse pour les sciences médicales) was consulted in the process of their elaboration; 28