Over the last decade, scholars have become increasingly attentive to the role of procedural fairness in shaping police officer attitudes and behaviors. In Chapter 1, I review key developments within this research, and identify several theoretical and methodological issues present in the current literature. I then outline the issues I seek to address through the three studies presented in this dissertation. In Chapter 2, I explore a divergence in how scholars conceptualize and measure sources of internal procedural fairness (IPF) within police departments. I discuss the implications of these divergences, and then compare three conceptualizations of IPF sources. I find that officers appear to form separate IPF judgement for each source, and that each procedural fairness judgment has unique associations with several outcomes. In Chapter 3, I examine the relationship between internal procedural fairness and officer engagement in external procedural fairness (EPF). Drawing upon the group engagement model (GEM), I argue that the relationship between IPF and EPF is mediated by organizational identification. Comparing the GEM against the prevailing explanation for this relationship, I find that the GEM better accounts for the relationship between IPF and EPF. In Chapter 4, I explore the role of organizational emphasis in shaping police officer support for several different policing strategies. The GEM suggests that IPF will simply bond officers to organizational goals and norms; it is this bond that motivates officers to adopt the strategies emphasized by their department. Examining support for several policing strategies, I find that officers who are more committed to their agency are more sensitive to changes in the emphasis placed on specific strategies. In Chapter 5, I review the findings of the various studies presented in this dissertation and discuss the implications of this research. Collectively, these three studies offer several insights into how IPF shapes police officer attitudes and behaviors. They highlight the importance of officer identification with organizational norms and value in shaping police officer attitudes and behaviors and establish new avenues for IPF research within police organizations.

Discretion is central to policing. The way officers use their discretion is influenced by situational, officer, and neighborhood-level factors. Concerns that discretion could be used differentially across neighborhoods have resulted in calls for increased police transparency and accountability. Body-worn cameras (BWCs) have been promoted to further these goals through increasing oversight of police-citizen encounters. The implication is that BWCs will increase officer self-awareness and result in more equitable outcomes. Prior researchers have largely evaluated the direct impact of BWCs. Researchers have yet to examine the potential for BWCs to moderate the influence of neighborhood context in individual incidents.

To address this gap, I use Phoenix Police Department data collected as part of a three-year randomized-controlled trial of BWCs to examine variation in police discretion. These data include over 1.5 million police-citizen contacts nested within 826 officers and 388 neighborhoods. I examine two research questions. First, how do proactivity, arrests, and use of force vary depending on situational, officer, and neighborhood contexts? This provides a baseline for my next research question. Second, examining the same contexts and outcomes, do BWCs moderate the influence of neighborhood factors on police behavior? As such, I examine the untested, though heavily promoted, argument that BWCs will reduce the influence of extralegal factors on officer behavior.

Using cross-classified logistic regression models, I found that situational, officer, and neighborhood factors all influenced proactivity, arrest, and use of force. BWCs were associated with a lower likelihood of proactivity, but an increased likelihood of arrest and use of force. Officers were more proactive and were more likely to conduct arrests in immigrant and Hispanic neighborhoods. The moderating effects suggest that officers were even more likely to proactively initiate contacts and conduct arrests in immigrant and Hispanic neighborhoods when BWCs were activated. However, after BWCs were deployed, use of force was significantly less likely to occur in black neighborhoods. Given that high-profile police use of force incidents involving black suspects are often cited as a major impetus for the adoption of BWCs in American police agencies, this finding is a key contribution to the literature.