Legal analysis: Criteria for filing a case: 1. Anyone who violates national regulations by renting international dedicated lines, privately setting up transfer equipment or other methods to operate international telecommunications business or telecommunications business involving Hong Kong, Macao and Taiwan for profit-making activities without authorization shall be The amount of outgoing calls exceeds 1 million yuan. 2. Illegal foreign exchange operations, buying and selling foreign exchange outside designated foreign exchange banks and the China Foreign Exchange Trading Center and its sub-centers, with an amount exceeding US$200,000, or illegal gains exceeding RMB 50,000. 3. Violate state regulations by publishing, printing, copying, and distributing illegal publications, with an individual's illegal business amount exceeding 50,000 yuan, and an unit's illegal business amount exceeding 150,000 yuan, etc.

Legal basis: Article 225 of the Criminal Law of the People's Republic of China and the People's Republic of China. Whoever violates national regulations and commits one of the following illegal business activities, disrupts market order, and if the circumstances are serious, shall be sentenced to five years The following fixed-term imprisonment or criminal detention, and concurrently or solely a fine of not less than one time but not more than five times the illegal income; if the circumstances are particularly serious, shall be sentenced to not less than five years of fixed-term imprisonment and concurrently a fine of not less than one time but not more than five times the illegal income, or confiscation of property: (1) ) Operating special items or other restricted items as stipulated in laws and administrative regulations without permission; (2) Buying and selling import and export licenses, import and export certificates of origin, and other business licenses or approvals stipulated in laws and administrative regulations documents; (3) illegally operating securities, futures, and insurance businesses without the approval of relevant state authorities, or illegally engaging in fund payment and settlement business; (4) other illegal business activities that seriously disrupt market order.