This book offers an historical and contemporary analysis of policing and police-citizen relations in Nigeria, to understand why people co-operate (or don¿t) with the police. It examines police legitimacy and the validity of procedural justice theory in a post-colonial African context where corruption, brutality and lack of accountability are not uncommon, to find more refined and alternative answers to the question of why people co-operate (or don¿t) with the police. The history of policing in Nigeria is explored first and then procedural justice theory is tested through an extensive, cross-sectional survey of the public. One of the core findings is that citizens¿ co-operation with the police