Legal analysis: in violation of state regulations, using point-of-sale terminal equipment (POS machines) and other means to directly pay cash to credit card holders by fictitious transactions, false pricing, cash return and other means. , the amount is more than 6,543,800 yuan, or the financial institution's funds are not returned more than 200,000 yuan within the time limit, or the financial institution's economic losses are more than 6,543,800 yuan, which constitutes the crime of illegal business operation and should be filed for prosecution.

Legal basis: Article 19 of the Criminal Procedure Law of People's Republic of China (PRC) shall be investigated by public security organs, except as otherwise provided by law. Crimes such as illegal detention, extorting confessions by torture, and illegal search. The people's procuratorate may file a case for investigation of illegal acts found by judicial personnel in the process of legal supervision of litigation activities. If a major criminal case of a functionary of a state organ under the jurisdiction of a public security organ needs to be directly accepted by a people's procuratorate, it may be placed on file for investigation upon the decision of a people's procuratorate at or above the provincial level. Cases of private prosecution are directly accepted by the people's courts.