<human>:  What is the best crime prevention strategy that cities can implement?
<bot>: The best crime prevention strategy for cities to implement is one that focuses on crime prevention through environmental design and increasing community involvement. This strategy should involve identifying and addressing environmental conditions that promote crime, such as dilapidated buildings, inadequate lighting, and deserted areas. Community involvement should center around neighborhood watch groups and other initiatives that encourage community members to work with local law enforcement to monitor and report criminal activity. Additionally, policies should be implemented that emphasize positive reinforcement of desired behaviors, as well as early intervention with high-risk individuals who may be more likely to engage in criminal activity.