Group 1 - The article discusses the efforts of the police in the Kangshan area to manage the complex population dynamics and security issues in the Mengxiang City mixed-use complex, which includes numerous single apartments and entertainment venues [1] - The police have implemented systematic measures since September of last year to address issues such as illegal parking, noise complaints, and street occupation, resulting in a significant improvement in the area's environment and safety [1] - The local police reported an average of over 30 emergency calls per month previously, indicating a high level of security pressure, which has now been alleviated through these initiatives [1] Group 2 - The Kangshan police have installed seven smart barrier systems and facial recognition devices at key locations within Mengxiang City to enhance security and streamline the monitoring of individuals entering and exiting the premises [2] - The implementation of the "Yunling" model, developed by the district's command center, allows for intelligent analysis of entry data, leading to a 68% year-on-year decrease in police response rates and a 75% reduction in cases related to prostitution [2] - The area has reported zero incidents of gambling, showcasing the effectiveness of the transition from manual control to intelligent monitoring systems [2]