Croatia has severe problems with corruption, and among European Union member states, it is one of the top 3 most corrupt countries. In order to qualify as a member of the European Union, Croatia has taken some measures to combat corruption. The legal and institutional framework as well as government agencies are addressing the issue of corruption in a much larger scale, and the inter-agency cooperation for corruption prevention has also increased, but these efforts are facing the large obstacle of an inefficient and corrupt judicial system. USKOK has prosecuted 2,000 individuals and achieved a 95% conviction rate (2012) (although convictions rarely resulted with prison sentences), including former Prime Minister Ivo Sanader.