Hong Kong's Court of Appeal has upheld a 56-month prison term for Ma Zhihao after investigators successfully traced cryptocurrency transactions to his involvement in a human trafficking operation. According to reports from Caixin, the appeals court rejected Ma's request for a reduced sentence, maintaining the punishment imposed by the District Court in November 2024. The court's decision was based on blockchain transaction records that provided direct evidence linking Ma to the criminal scheme, highlighting the growing law enforcement use of cryptocurrency tracing in tackling transnational crime.
Police investigation revealed that 8,127 USDT from a victim's ransom payment was traced to an exchange account registered in Ma's name using his real identity documents. As reported by Caixin, the funds were converted into approximately HK$63,000 and transferred to Ma's personal HSBC bank account. The blockchain transaction history provided a transparent record connecting the ransom wallet, the exchange account, and the subsequent withdrawal into the traditional banking system. This evidence was crucial in supporting the court's finding that Ma had participated in the trafficking scheme and received proceeds from it.
The case involved five victims who were recruited between 2021 and August 2022 through false employment and business offers on platforms including Facebook, Telegram, and Instagram. According to Hong Kong media reports, recruiters advertised jobs at Cambodian casinos, assignments involving luxury handbag purchases from Thailand, and work with expensive watches, with some offers promising payments reaching tens of thousands of Hong Kong dollars. Once victims arrived in Southeast Asia, they faced confiscation of passports and travel documents before being moved to compounds controlled by criminal groups.
Ma and another defendant, Cheung Man-wai, admitted conspiracy to defraud in connection with recruiting five people. As reported by local court reporting, Ma received a 28-month sentence for money laundering charges, bringing his total imprisonment to 84 months. Cheung, whose role was described as less central, received a 36-month prison sentence after helping transport one victim to the airport. The court treated Ma as an important participant in a planned operation connected with an international criminal organization, with all five victims eventually returning to Hong Kong after periods of confinement abroad.
Hong Kong police have developed specialized tools for investigating cryptocurrency-related crimes, including the CryptoTrace system unveiled in May 2025 after development with the University of Hong Kong. According to previous reports, CryptoTrace uses blockchain analytics and transaction visualization to help officers follow suspected illicit funds and identify connections between wallets. This system has enabled police to trace cryptocurrency payments across Southeast Asian trafficking and scam networks, with Chainalysis reporting that crypto-linked trafficking payments increased 85% in 2025 across tracked services.
