In 2012, the City of Chula Vista Police Department (CVPD) officers spent more than 8,100 hours responding to more than 3,600 domestic violence (DV) and domestic disturbance (DD) calls. The number of DV/DD calls in the city exceeded the combined total of all robbery, residential burglary, vehicle theft, and vehicle burglary calls. Although the raw number of all calls to CVPD declined 14 percent, the number of DV calls remained essentially unchanged prior to SPI intervention. In response, CVPD decided to incorporate a focused-deterrence approach to enhance patrol responses in hot spot DV/DD call areas and engage community stakeholders in the process. The initiative was evaluated through a quasi-experimental study.