CAT/C/HUN/CO/4 page 7 Prisoners placed under a special security regime 18. The Committee is concerned at the situation of the so-called “Grade 4 prisoners” who may be placed in a maximum security cell or ward with severe restrictions of their rights resulting in extreme isolation and deprivation of human contact. Furthermore, the Committee notes with concern that, according to information before the Committee, neither the Admission Committee of a given penitentiary institution nor the special committee appointed by the national commander issue formal resolutions and that the “Grade 4 prisoners” cannot appeal to any higher-level authorities or any courts (arts. 2, 13 and 16) The State party should review and refine the system of classifying prisoners as Grade 4 with a view to ensuring that this grade is only applied – and retained – in respect of prisoners who genuinely require to be accorded such a status and review without further delay their current policy with regard to the application of means of restraint to prisoners placed under this system. Furthermore, the State party should establish a proper appeal procedure relating to this special security regime as well as adequate review mechanisms relating to its determination and duration. The Roma 19. The Committee is deeply concerned at reports of a disproportionately high number of the Roma in prisons and ill-treatment of and discrimination against the Roma by law enforcement officials, especially the police (arts. 11 and 16) The State party should intensify its efforts to combat discrimination against and illtreatment of the Roma by law enforcement officials, especially the police, including through the strict application of relevant legislation and regulations providing for sanctions, adequate training and instructions to be given to law enforcement bodies and the sensitization of the judiciary. Furthermore, the State party should strengthen its support to the grant programme for support of police officers of Roma origin and to the Roma Police Officers Association. National minorities and non-citizens 20. The Committee notes with concern reports of ill-treatment of and discrimination against persons belonging to national minorities and non-citizens by law enforcement officials, especially the police (arts 11 and 16) The State party should strengthen its efforts to combat ill-treatment of and discrimination against persons belonging to national minorities and non-citizens by law enforcement officials. Trafficking 21. The Committee is concerned about persistent reports of trafficking in women and children for sexual and other exploitative purposes. The Committee regrets the lack of information about any assistance provided to victims of trafficking and training of law enforcement personnel and other relevant groups (arts. 2, 10 and 16)