The twelfth Annual Report, giving insight into how Eurojust functions and operates as well as into its casework and strategic activities in 2013. Eurojust has become a recognised key player in supporting the Member States of the European Union in their fight against serious crossborder crime. Our experience and expertise gained over 11 years of existence is of added value for national prosecutors and law enforcement authorities when dealing with transnational mutual legal assistance requests, the application of mutual recognition instruments and the coordination of criminal cases. The number of cases for which Member States requested Eurojust’s assistance increased 2.8 per cent, from 1 533 cases in 2012 to 1 576 cases in 2013.