According to news on March 24, after a five-year investigation at Southwark Crown Court in London, England, it was discovered that former hotel worker Jian Wen was involved in a Bitcoin money laundering operation worth $2.5 billion, involving the review of 48 electronic devices and thousands of digital files. , who has currently been convicted of money laundering.

It was previously reported in January that British law enforcement agencies had confiscated Bitcoin worth US$1.7 billion (based on the price at the time) after a former hotel employee Jian Wen tried to use the Bitcoin to buy a luxury home in London worth approximately US$30 million because he was unable to Explaining the origin of the crypto asset, the purchase was not successful. It is reported that Jian Wen became a British citizen in 2018 and was allegedly recruited to assist Zhimin Qian in money laundering. He was accused of converting Bitcoin into cash, luxury goods and real estate on behalf of Zhimin Qian.