CAT/C/CYP/CO/5 (e) Establish a centralized system of data collection covering all forms of domestic and gender-based violence in order to facilitate risk assessments and improve protection. Sexual and gender-based violence against refugee and asylum-seeking women 26. While taking note of the information provided by the State party during the dialogue on the measures taken to address gender-based violence in the context of migration, the Committee remains concerned at reports of actions or omissions by State agencies or other entities that engage the responsibility of the State party under the Convention, in particular at the reported high incidence of violence, including sexual violence, against refugee and irregular migrant women and girls in Cyprus (arts. 2, 11 and 16). 27. The State party should: (a) Take effective measures to ensure that all cases of gender-based violence – in particular against refugee, asylum-seeking and migrant women and girls, and especially those involving actions or omissions by State authorities or other entities that engage the international responsibility of the State party under the Convention – are thoroughly investigated, that the alleged perpetrators are prosecuted and, if convicted, punished appropriately, and that the victims or their families receive redress, including adequate compensation; (b) Ensure that police officers and prosecutors refrain from turning away alleged victims of gender-based violence. The State party should also consider revising police practices that may deter women from seeking protection from the authorities in cases where they have been subjected to or are at risk of gender-based violence; (c) Provide mandatory training on prosecution of gender-based violence to all justice officials and law enforcement personnel and continue awareness-raising campaigns on all forms of violence against women; (d) Adopt specific protective measures to prevent and respond to sexual and gender-based violence against refugee, asylum-seeking and migrant women and girls held in reception centres and other immigration detention facilities; (e) Ensure that survivors of gender-based violence are able to access shelters and receive the necessary medical care, psychological support and legal assistance they require. Trafficking in persons 28. While welcoming the legislative and other measures taken to strengthen the prevention and prosecution framework in relation to trafficking in persons (see paras. 5 (a) and 6 (a) above), such as amendments to the trafficking law that have increased penalties for the offences therein, and the establishment of a national referral mechanism, the Committee remains concerned at the lack of data collection on, and analysis to evaluate, the impact of preventive measures and the degree to which public officials are involved in trafficking. The Committee regrets the lack of information on the means of redress provided to victims of trafficking in persons in terms of social, medical and legal support (arts. 2, 12, 13, 14 and 16). 29. The State party should continue its efforts to combat trafficking by: (a) Vigorously enforcing the new legislative framework by promptly, effectively and impartially investigating and prosecuting trafficking offenders, including officials involved, convicting those found responsible and punishing those convicted with appropriate sanctions; (b) Formulating clear guidelines and providing specialized training to the police, prosecutors, judges, immigration officers and social workers on the identification of individuals in need of international protection, including victims of torture, ill-treatment and trafficking; on effective investigations; on prosecutions; and on punishment for acts of trafficking; 7