Dr. Renee Mitchell is a sergeant in the Sacramento police department, California, and a co-founder and current president of the American Society of Evidence-Based Policing. In a wide-ranging chat, we explore the myriad ways research can help 21st century policing. We also cover her Sacramento Hot Spots Experiment, how policing research is like following the white rabbit from Alice in Wonderland, Critical Incident Stress Debriefing and its lack of evidence base, "Make it stop" policing, and the lack of science around police-involved shootings.