According to procedural justice [PJ] theory, when police treat people in a fair, respectful, and neutral manner, individuals are more likely to perceive the police as legitimate and comply with directives. Two mechanisms are generally provided to explain this relationship. The first is based on normative expectations about authorities, whereby PJ communicates that police authority is valid, unbiased and entitled to be obeyed. The second is rooted in social identity perspectives, whereby fair treatment communicates that individuals have status and value, strengthening the social bonds between the individual and group. This project aims to probe these causal mechanisms and unpack how certain police behaviors during a routine interaction can influence people’s attitudes. ...