Group 1 - Daqing Public Security Bureau focuses on addressing the urgent and difficult issues faced by the public, aiming to create a safe and stable social security environment during the summer [1] - The police department emphasizes their commitment to serving the community and ensuring public safety through professional skills and actions [1] Group 2 - Datong Police Station received a banner of appreciation from a couple for their timely assistance in rescuing their sick child during a medical emergency [3] - The police acted quickly to escort the family to the hospital and assisted with the registration process, demonstrating their dedication to public service [3] Group 3 - Dongguang Police Station successfully located a missing student after a thorough search initiated by the police following a parent's report [5][6] - The efficient and practical approach of the police was recognized by the parent, who presented a banner in appreciation of their efforts [6]