I am an Associate Professor of Politics and Public Affairs at Princeton University. I study bureaucratic politics and political behavior, and devote particular focus to law enforcement agencies and police-civilian interactions. My work explores several facets of policing, including how controversial tactics are deployed in time and space, how rules and procedures affect the nature and volume of police-civilian interactions, the role of race in police behavior, and how police tactics affect perceptions of law enforcement and crime. 

I also conduct methodological research on issues relevant to my substantive work, including causal inference, statistical modeling and experimental design. My work exploits a range of research designs and data sources including field, natural, and survey experiments, qualitative interviews and administrative records obtained through public information requests to government agencies.

My research has appeared in American Political Science Review, The Journal of Politics, Proceedings of the National Academy of Sciences, Journal of the American Statistical Association, and Science, among other peer-reviewed journals. I received a B.A. from New York University and a Ph.D. from Stanford University. Before beginning my doctoral studies I was a staff writer at The Washington Post where I covered crime and politics in the Washington, D.C. region.

Please visit https://policingresearch.org/ for work by my group, Research on Policing Reform and Accountability (RoPRA), co-founded with Dean Knox.