CAT/C/UKR/CO/6 (f) Provide the Committee with comprehensive disaggregated data on the number of investigations, prosecutions and sentences handed down for human trafficking and on the provision of redress to the victims. Parliamentary Human Rights Commissioner and the national preventive mechanism 16. The Committee welcomes the amendments to the Act on the Parliamentary Human Rights Commissioner (Ombudsman) designating the Office of the Commissioner as the national preventive mechanism. However, the Committee is concerned about the lack of sufficient financial and staffing resources to carry out both the mandate of national human rights institution and that of national preventive mechanism under the Optional Protocol to the Convention (art. 2). The State party should allocate additional financial and staffing resources to ensure the full and effective operation of the national preventive mechanism in compliance with the Optional Protocol to the Convention. Asylum seekers and internally displaced persons 17. The Committee is concerned at reports that persons in need of international protection do not have access to asylum procedures, including determination of refugee status, in accordance with international standards. It is also concerned about the unnecessary detention of asylum seekers, the short five-day limit for appealing against negative decisions and the lack of regular access to legal aid and interpreters. While taking note of the adoption of the law on internally displaced persons on 20 October 2014, the Committee is particularly concerned at the large number of internally displaced persons as a result of the annexation of Crimea and armed conflict in parts of the country (arts. 3, 14 and 11). The State party should: (a) Ensure that all persons applying for international protection have access to a fair refugee determination procedure and are effectively protected against refoulement; (b) Refrain from detaining asylum seekers for prolonged periods, use detention only as a measure of last resort for as short a period as possible, promote alternatives to detention and revise policy in order to bring it in line with the Guidelines on the Applicable Criteria and Standards relating to the Detention of Asylum Seekers and Alternatives to Detention issued by the Office of the United Nations High Commissioner for Refugees; (c) Consider increasing the time for filing appeals and ensure that rejected applicants are not deported immediately upon the conclusion of administrative proceedings before they are able to submit an appeal against a negative asylum decision, and make available legal aid and interpreters; (d) Take all the necessary measures, in accordance with international standards, to provide sufficient protection to all internally displaced persons. Training 18. The Committee appreciates the training programmes provided to the staff of procuratorial and internal affairs agencies and the prison service. The Committee is concerned, however, at the absence of specific methodologies to evaluate the effectiveness and impact of such training on the number of cases of torture and ill-treatment. It is also concerned that training on the Manual on the Effective Investigation and Documentation of Torture and Other Cruel, Inhuman or Degrading Treatment of Punishment (Istanbul 7