Context Matters: The Conditional Effect of Black Police Chiefs on Policing Outcomes

A frequently proposed “solution” to the problem of racially targeted policing is to diversify the leadership of a police department, such as instate a Black police chief. However, little is known about how and when such changes may alter policing outcomes. Here, we question whether this descriptive representation leads to a reduction in racial disparities in policing outcomes and how the political and social context may condition that relationship – captured by why a transition took place. To test this, we turn to traffic stop data from nine agencies in Illinois that had variation in chief race between 2004 and 2018. We find that who heads a police department – and why they were appointed (i.e., transition type) – is linked to search rates following a traffic stop, which has implications for work on race and policing, descriptive representation, and local politics.