This article examines different theoretical explanations for rioting and crowd disorder drawing on psychological, sociological and political perspectives. The role of the law and in particular, police practice in tackling and exacerbating crowd violence are explored with a critical eye on the latest police science research. Both psychological motivations of rioters and systemic intersectional inequalities are considered together in this piece to comprehensively account for the reasons why people choose to riot. The adequacy of theoretical explanations and recommendations for how future riots might be avoided are considered in relation to the English riots of August 2011 and August 2024.