This guide provides guidance to merchants and their law enforcement partners in developing strategies to prevent public disorder problems, such as public intoxication, vandalism, and loitering. The guide walks readers through understanding the root causes of public disorders, identifying potential strategies, and measuring the impact of those strategies. While public disorder problems vary based on local context, promising strategies to address them include broadcasting classical music, improving lighting in parking facilities and building exteriors, securing perimeters to limit pedestrian access, and establishing policies and sanctions regarding acceptable public behavior.