This study aims to empirically verify the prevention effect of logojectors on minor public disorder crimes, drawing on key discussions in environmental criminology such as Crime Prevention Through Environmental Design (CPTED), Situational Crime Prevention, and Broken Windows Theory. The study focuses on Geumjeong-gu, Busan, and compares areas where logojectors were installed (experimental group) to areas without installations (control group). Data on minor disorder offenses from 112 police reports were used, with control groups selected on the basis of spatial and environmental homogeneity using demographic data, residential neighborhood data, and environmental characteristics such as vacant properties, food service business, CCTV locations, and nightlife venues. The analysis result demonstrated a significantly lower number of 112 reports in areas with logojectors compared to areas without logojectors. The result suggests that logojectors can have a positive impact on crime prevention. This study has academic and policy implications by empirically demonstrating the effectiveness of logojectors, a crime prevention device based on CPTED principles. It highlights the potential of logojectors not just as a promotional or superficial security measure, but as an effective crime prevention tool. In addition, the data-driven effectiveness assessment enhances the credibility of the police policy. However, this study is limited by its focus on Geumjeong-gu and the inability to fully isolate the influence of other crime prevention factors, such as streetlight. Future research should incorporate time-series analysis or regression analysis that account for temporal dynamics and spatial dependencies to achieve more sophisticated effectiveness verification evaluations. This study will be helpful to suggest rational and efficient deployment strategies for logojectors and improve the practical effectiveness of CPTED-based crime prevention strategies.