The study determined the community participation in the 12 Best Practices of the Binan City Police Station in addressing criminality; assessed the effects of the 12 Best Practices in the reduction of criminality in terms of social, political, technological, and psychological effects; and tested the relationship between the community participation in the 12 Best Practices and its effects in the reduction of criminality. The researcher employed a descriptive research design. The participants were elected barangay officials from each of the 24 barangays in Biñan City. As the primary tool from the 12 Best Practices of Biñan City, the researcher employed an adaptive questionnaire. Frequency and percentage distribution, weighted mean, and Pearson r correlation were used in the analysis and interpretation of data. The researcher concluded that the 12 best practices of the Biñan City Police Station, namely B-SKUL, B-POW, B-FEED, B-ON WHEELS, B-ON, DIAL-B, B-PAD, B-AMRIC, B-IN, B-PREPARED, B-RIDERS, and B-AID, are highly participated in by the barangay officials and residents of Biñan City. The involvement of the residents of the community has turned out to be a significant element of crime prevention. Effective implementation of the 12 Best Practices of the Biñan City Police Station has positive social, political, technological, and psychological effects on the reduction of criminality. Biñan City Police has created a friendly working atmosphere between the residents and the police, which can contribute significantly to the reduction of crime in the area. Their local government is providing barangay officials with technical knowledge and skills as well as funding for crime reduction in their area. Various communication equipment is also utilized as a tool for crime reduction. Through the implementation of these practices, residents of the community feel safe and secure. There are significant relationships between community participation in the 12 Best Practices of the Biñan City Police Station and its social, political, technological, and psychological effects on crime reduction, implying that the higher the participation in the 12 Best Practices, the better the effects on crime reduction.