A/HRC/29/47 including human rights training at various levels, to prevent and combat effectively racism, racial discrimination, xenophobia and related intolerance. 52. The Special Rapporteur also recommends that the capacity of law enforcement officials and members of the judiciary be strengthened further to address crimes motivated by racist, xenophobic, anti-Semitic or homophobic biases. Comprehensive and mandatory human rights training, including training with a specific focus on racist and xenophobic crimes perpetrated by individuals linked to extremist political parties, groups and movements, should be provided to public officials, including law enforcement agents, who should also be provided with the necessary guidelines and procedures to be able to identify, investigate and register such crimes. He emphasizes that States should also ensure that law enforcement agents engage with vulnerable groups who are particularly at risk of racist, xenophobic, anti-Semitic or homophobic crimes, in order to reduce their legitimate fears and concerns, restore confidence in the application of the rule of law, and that they report such crimes adequately. 53. The Special Rapporteur appreciates the organization of awareness-raising activities such as cultural events, festivals, conferences, seminars, competitions, exhibitions, research work and publications, as well as information campaigns and other events aimed at providing a space for intercultural dialogue and interaction, which contribute to the building of a society based on pluralism, tolerance, respect for cultural diversity, multiculturalism and non-discrimination and which should be further encouraged. Internet and social media 54. The Special Rapporteur notes with concern the increased use of the Internet and social media by extremist political parties, movements and groups to promote and disseminate racist content. States should take all opportunities, including those provided by the Internet, to counter the dissemination of ideas based on racial superiority or hatred, and promote the values of equality, non-discrimination, diversity and democracy, while respecting their obligations under articles 19 and 20 of the International Covenant on Civil and Political Rights. In order to ensure full respect for human rights and democratic principles, States, while adopting measures to counter extremist ideas and biases, should strengthen freedom of expression, which plays a crucial role in promoting democracy and combating racist and xenophobic ideologies based on racial superiority. Sport 55. The Special Rapporteur calls on States to strengthen measures to prevent racist and xenophobic incidents at sporting events. He notes the key role of sport in promoting cultural diversity, tolerance and harmony and recommends that States take advantage of such events to promote the values of tolerance and respect. He recalls paragraph 218 of the Durban Programme of Action, which urges States, in cooperation with intergovernmental organizations, the International Olympic Committee and international and regional sports federations, to intensify the fight against racism in sport by educating the youth of the world through sport practised without discrimination of any kind and in the Olympic spirit, which requires human understanding, tolerance, fair play and solidarity. Holocaust denial 56. The Special Rapporteur condemns any denial or attempt to deny the Holocaust and all manifestations of religious intolerance, incitement, harassment or violence against persons or communities based on ethnic origin or religious belief. He also calls 14