The notion of vigilantism covers a wide variety of phenomena. This volume has concentrated on vigilantism targeting migrants and minorities. Even within this broad category, our 17 case studies have described a wide variety of vigilante activities, diverging in modus operandi, target groups, levels of violence used, and degrees of support or opposition from the police, other governmental agencies, and political organizations. This concluding chapter will explore the research questions we listed at the beginning of the Introduction chapter.