Abstract: This paper explores the idea that to confer legitimacy on the police is to feel not only obligated to obey the police but also morally aligned with the values of the police. A national probability survey of adults in England and Wales supports an extended version of Tyler's procedural justice model of public cooperation with legal authorities. We find especially strong correlations between (a) negative contact with the police,(b) trust in police procedural justice,(c) obligation to obey the police (recognition of police authority) and ...