The investigation of Qian's health fraud case should start from the level of a gang fraud case, including his two wives and Zhang, his two sisters Qian He, his daughter Qian Yu, his cousin Zhou Siji and his cousin Quehua. And Zhang's northeast brother and so on. And their parents and so on. Investigate the financial changes between them through the People's Bank of China. Qian Jiankang cheated in society in this way, and the degree of cunning exceeded our imagination. He killed a boss in Wujiang before. I implore our public security organs to investigate and deal with this liar, and wipe out this group of liars and animals who harm others and themselves!