This path-breaking volume fills a major gap in the literature on efforts to rebuild societies emerging from conflict. Drawing on firsthand experience in tackling organized and other destabilizing crime in Kosovo, Bosnia, Afghanistan, Iraq, and elsewhere, it distills that practical, hard-won knowledge into lessons and guidance for policymakers and practitioners who must face similar challenges. No similar work exists anywhere."Serious crimes" include any and all criminal acts that threaten post-conflict security, hinder political and economic reconstruction, or undermine public trust in nascent criminal justice institutions. From money laundering to murder, drug trafficking to terrorism, these crimes flourish where governments are impotent or officials are themselves complicit in illegal activities. Their impact on post-conflict societies of all types can be profoundly damaging--but they can be dealt with. More than forty seasoned practitioners--judges and generals, prosecutors and human rights activists, scholars and government officials from across the world--participated in the discussions that generated the broad guidelines and more specific prescriptions presented in this handbook. Each of its chapters covers a different area of activity--initial assessment, reform of the legal framework, institutional reform, investigation and prosecution of serious crimes, and foreign assistance--providing not only general guidance but also real-life examples to illustrate the importance of adapting to local circumstances.Easy to read and easy to use, with checklists and sidebars supplementing the succinct text, "Combating Serious Crimes" will be greatly appreciated by governments, international and regional organizations, and foreign assistance providers throughout the world. The police, judges, prosecutors, defense counsel and peacekeepers who address serious crimes on a day-to-day basis in post-conflict states will likewise find the book invaluable.