A complex phenomenon which has undergone significant changes in the past forty years, Leslie Holmes argues that organised crime is in need of re-conceptualisation. This innovative book navigates the evolution of this issue to grasp its full scope in the twenty-first century.Critically analysing existing theories, Holmes provides a detailed explanation as to why we need to rethink organised crime, tracking changes such as the demographic of organised criminals, the increasing role of technology and crime s move into the legitimate economy. The book details the major types of contemporary organised crime, both online and offline, and how they overlap with other forms of criminality, including white-collar crime, state crime, police criminality and terrorism. Finally, Holmes examines the major agencies involved in combating this issue, the methods they use and the extensive problems they encounter.Campaigning for a broader way of theorising organised crime, this book is vital for students and scholars of criminology, political science and security studies. Its practical applications also make it a valuable read for practitioners involved in combating organised crime, including those working in law enforcement and legislation.