A/RES/66/128 18. Calls upon States, in accordance with the provisions of article 36 of the Vienna Convention on Consular Relations, 21 to ensure that, if a woman migrant worker is arrested or committed to prison or custody pending trial, or is detained in any other manner, the competent authorities respect her freedom to communicate with and have access to the consular officials of the country of her nationality, and in this regard to inform without delay, if that woman migrant worker so requests, the consular post of her State of nationality; 19. Invites the United Nations system and other concerned intergovernmental and non-governmental organizations to cooperate with Governments, within existing resources, towards a better understanding of the issues concerning women and international migration, and to improve the collection, dissemination and analysis of sex- and age-disaggregated data and information in order to assist in the formulation of migration and labour policies that are, inter alia, gender-sensitive and that protect human rights, as well as to aid in policy assessment and to continue to support national efforts to address violence against women migrant workers in a coordinated way that ensures effective implementation, enhances their impact and strengthens positive outcomes for women migrant workers; 20. Encourages Governments to formulate national policies concerning women migrant workers that are based on up-to-date, relevant sex-disaggregated data and analysis in close consultation with women migrant workers and relevant stakeholders throughout the policy process, and also encourages Governments to ensure that such process is adequately resourced and that the resulting policies have measurable targets and indicators, timetables and monitoring and accountability measures, in particular for employment agencies, employers and public officials, and provide for impact assessments and ensure multi-sector coordination within and between countries of origin, transit and destination through appropriate mechanisms; 21. Encourages concerned Governments, in particular those of the countries of origin, transit and destination, to avail themselves of the expertise of the United Nations, including the Statistics Division of the Department of Economic and Social Affairs of the Secretariat, and UN-Women, to develop and enhance appropriate sex-disaggregated national data-collection, analysis and dissemination methodologies that will generate comparable data, and tracking and reporting systems on violence against women migrant workers and, wherever possible, violations of their rights at all stages of the migration process, and: (a) To further study the costs of violence against women, including migrant workers, to the women themselves, their families and their communities; (b) To analyse the opportunities available to women migrant workers and their impact on development; (c) To support the improvement of macrodata on remittances, for appropriate policy formulation and implementation; 22. Requests the Secretary-General to provide a comprehensive, analytical and thematic report to the General Assembly at its sixty-eighth session on the problem of violence against women migrant workers and on the implementation of the present resolution, specifically with regard to access to justice for women migrant workers, highlighting the impact of legislation, policies and programmes on _______________ 21 United Nations, Treaty Series, vol. 596, No. 8638. 7