Shanghai's Baoshan District People's Procuratorate has successfully supervised 24 cases involving 24 individuals in a major money laundering investigation. The case, disclosed by the Shanghai Prosecutor's Office, involved a complex underground banking network with extensive accounts and transactions, laundering a total of 18 billion yuan ($2.5 billion). The suspects used cryptocurrencies to facilitate cross-border transfers of illicit funds. Prosecutors, in collaboration with police, employed advanced financial tracking techniques to trace the flow of funds, identify sources and destinations, and secure electronic evidence, enhancing the effectiveness of combating new forms of money laundering involving underground banks and cryptocurrencies.