A/HRC/13/23/Add.1 and elsewhere must be met with appropriate responses. Positive models of intercommunity dialogue, mediation and conflict prevention exist in other countries and may be useful in this context. Appropriate mechanisms for policing and ensuring the rule of law in multi-ethnic societies are crucial to prevent violent incidents. 92. Groups, including Roma and Luli (or Lyuli), were generally described as nomadic or itinerant and with livelihoods solely in the informal sector. Such groups are not represented in the Assembly of the People or other State institutions. They often lack identification documents required to secure services and may be vulnerable with regard to access to health care, education, housing and the effects of extreme poverty. Women and children belonging to these groups may be particularly at risk. The Government is urged to constructively engage with such communities in order to assess their needs and address discrimination against them. Sustainable solutions should be developed to improve access to their rights. 93. The independent expert is concerned by reports received directly from human rights defenders in Kazakhstan and independent sources that the legitimate and lawful activities of some non-governmental organizations and individuals are hampered by interference, intimidation, surveillance and harassment by government security bodies and unknown actors. Organizations reported experiencing difficulties in carrying out activities or producing reports, including in the field of minority rights and ethnic relations and in defence of non-traditional religious minorities. Reports were received of alleged irregularities in the trial of one prominent human rights defender in September 2009. Non-governmental organizations must be allowed to be established and registered freely, to obtain funding and to conduct their legitimate activities in the field of human rights in an environment of openness, transparency, security and full legal protection. 22 GE.10-10602