This volume collects new contributions to research on mafias, organized crime, money laundering, and other forms of complex crimes, gathering some of the most authoritative and well-known scholars in the field. The chapters for this volume are original peices written in honor of the retirement of Dr. Ernesto U. Savona, highlighting his research and legacy. Throughout his academic career, Professor Ernesto U. Savona has investigated complex crimes ranging from organized crime, to economic crime, to money laundering. In his work, he has tried to bring together academics, policy makers, and practitioners to bring understanding for crime problems and innovative solutions. His passion towards the practical application of the findings of scientific research led him to found Transcrime in 1994, which is today among the most important criminological think-tanks in Europe.This important book is aimed at scholars studying criminal policy and research, particularly in the areas of criminal networks, organized crime, white collar crime, the history of criminology.