Group 1 - A recent incident in Hangzhou highlights the rise of fraud related to supermarket gift cards, where victims are tricked into purchasing cards and sending them to scammers [1][3] - The local police have established a rapid response mechanism involving supermarket staff to identify and report suspicious activities related to gift card purchases [3][4] - Since the implementation of this mechanism, supermarket employees have reported seven suspicious cases, successfully preventing over 420,000 yuan in potential losses for the public [4] Group 2 - The fraud scheme involves scammers using social media to lure victims with promises of easy money, leading them to download fraudulent applications and ultimately request large purchases of supermarket gift cards [3] - Supermarket staff are now trained to recognize unusual purchasing behavior and are encouraged to verify the purpose of large gift card purchases [2][3] - The initiative was started by community police to address the increasing cases of fraud linked to supermarket gift cards, demonstrating a proactive approach to crime prevention [3][4]