(9) The 2000 United Nations Protocol to Prevent, Suppress and Punish Trafficking in Persons, Especially Women and Children, supplementing the United Nations Convention against Transnational Organised Crime and the 2005 Council of Europe Convention on Action against Trafficking in Human Beings are crucial steps in the process of enhancing international cooperation against trafficking in human beings. It should be noted that the Council of Europe Convention contains an evaluation mechanism, composed of the Group of experts on action against trafficking in human beings (GRETA) and the Committee of the Parties. Coordination between international organisations with competence with regard to action against trafficking in human beings should be supported in order to avoid duplication of effort.