(d) Guarantees victims just and adequate reparation for the material and moral harm suffered as a result of racial discrimination. III. Steps to be taken to prevent racial discrimination in regard to accused persons who are subject to judicial proceedings A. Questioning, interrogation and arrest 20. States parties should take the necessary steps to prevent questioning, arrests and searches which are in reality based solely on the physical appearance of a person, that person’s colour or features or membership of a racial or ethnic group, or any profiling which exposes him or her to greater suspicion. 21. States parties should prevent and most severely punish violence, acts of torture, cruel, inhuman or degrading treatment and all violations of human rights affecting persons belonging to the groups referred to in the last paragraph of the preamble which are committed by State officials, particularly police and army personnel, customs authorities, and persons working in airports, penal institutions and social, medical and psychiatric services. 22. States parties should ensure the observance of the general principle of proportionality and strict necessity in recourse to force against persons belonging to the groups referred to in the last paragraph of the preamble, in accordance with the Basic Principles on the Use of Force and Firearms by Law Enforcement Officials.iii 23. States parties should also guarantee to all arrested persons, whatever the racial, national or ethnic group to which they belong, enjoyment of the fundamental rights of the defence enshrined in the relevant international human rights instruments (especially the Universal Declaration of Human Rights and the International Covenant on Civil and Political Rights), in particular the right not to be arbitrarily arrested or detained, the right to be informed of the reasons for their arrest, the right to the assistance of an interpreter, the right to the assistance of counsel, the right to be brought promptly before a judge or an authority empowered by the law to perform judicial functions, the right to consular protection guaranteed by article 36 of the Vienna Convention on Consular Relations and, in the case of refugees, the right to contact the Office of the United Nations High Commissioner for Refugees. 24. As regards persons placed in administrative holding centres or in holding areas in airports, States parties should ensure that they enjoy sufficiently decent living conditions. 25. Lastly, as regards the questioning or arrest of persons belonging to the groups referred to in the last paragraph of the preamble, States parties should bear in mind the special precautions to be taken when dealing with women or minors, because of their particular vulnerability. B. Pretrial detention 26. Bearing in mind statistics which show that persons held awaiting trial include an excessively high number of non-nationals and persons belonging to the groups referred to in the last paragraph of the preamble, States parties should ensure: 7