Many questions regarding research on police methods have traditionally been raised, tested, and evaluated by academics. In this study, the research team did not comprise academics but rather practitioners. The 90-day Sacramento Police Department (SPD) hot-spot study was completely designed, implemented, and analyzed by personnel within the SPD with the guidance of researchers from George Mason University in Fairfax, Virginia. Special thanks to David Weisburd, PhD; Cynthia Lum, PhD; Christopher Koper, PhD; and Cody Telep. Additionally, this hot-spot study was conducted without external funding.