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On July 10, 2015, a young African American woman named Sandra Bland was stopped by State Trooper Officer Brian Encinia for failing to signal a lane change. What began as a routine traffic stop quickly devolved into shouting, a physical confrontation, and Bland's subsequent arrest. We use discourse analysis to examine the rapid escalation of this encounter with a focus on procedural justice (Sunshine & Tyler 2003) and the dialogic approach to legitimacy (Bottoms & Tankebe 2012). In analyzing the transcript of Sandra Bland's traffic stop, we address several key questions: How is procedural justice manifested linguistically? Can the dialogic legitimacy framework be used to understand the dynamics of individual police-citizen interactions? The conclusions of this analysis provide an interdisciplinary view of how procedural justice and legitimacy are manifested and negotiated in a police-citizen interaction.

Examines the influence of positive, negative, and neutral police behavior during traffic stops on citizen perceptions of police. Participants were randomly assigned to view a video clip of a simulated traffic stop in which the officer communicates with the driver in a positive (procedurally just), negative (procedurally unjust), or neutral manner. After viewing the video, participants completed a survey about their perceptions of police, including their level of trust in police, obligation to obey police orders, and willingness to cooperate with police. Observing positive interactions with police enhanced people’s self-reported willingness to cooperate with police, obligation to obey police and the law, and trust and confidence in police, whereas observing negative interactions undermined these outcomes. The effects of these interactions were much stronger for encounter-specific outcomes than for more general outcomes. The results from this randomized experiment confirm that procedural justice can enhance people’s prosocial attitudes toward police, whereas procedural injustice can undermine these attitudes. While positive (procedurally just) interactions tend to have weaker effects than negative (procedurally unjust) interactions, this study finds little support for the notion that only negative experiences shape people’s views about the police.

Research shows that perceptions of procedural justice influence people’s trust, confidence, and obligation to obey law and legal authorities as well as their willingness to cooperate with and support legal authorities. Interpersonal interaction styles that are central to procedural justice theory also play a key role in communication accommodation theory (CAT). Based on video clips depicting a police traffic stop, we use a randomized experiment to test the effects of procedural justice and overaccommodation on trust in police, willingness to cooperate with police, and obligation to obey police and the law. The results demonstrate that procedural justice has more powerful effects than overaccommodation on reported trust and confidence in the officer, as well as respondents’ obligation to obey and willingness to cooperate with the officer. Moreover, although procedural justice generated strong effects on encounter-specific attitudes, it did not exert any effect on more general attitudes toward police.