On 11 November 2025, Southwark Crown Court jailed Qian for 11 years and eight months for laundering proceeds from a vast China-based fraud that targeted more than 128,000 victims. UK authorities say they seized over 61,000 BTC (valued at roughly £5.5 billion at recent marks) the largest cryptocurrency recovery in British history.
Case summary
Prosecutors said Qian (also known as Yadi Zhang) fled China in 2017 and moved criminal proceeds into Bitcoin to obscure their origin. Working under false identities in the UK, she attempted to convert crypto to high-value property and luxury goods before being arrested in April 2024 following a multi-year Metropolitan Police investigation. She pleaded guilty to money-laundering offences.
Record seizure and how the fraud worked
The underlying fraud operated in China between 2014 and 2017, drawing billions from mostly elderly retail investors through sham investment programmes and then cycling funds into crypto. When UK police examined devices seized from Qian’s London base, they uncovered keys controlling more than 61,000 Bitcoins, a hoard now subject to confiscation and asset-recovery proceedings. UK authorities describe the haul as both the country’s biggest crypto seizure and its largest money-laundering case by value.

Co-defendant sentenced
Qian’s associate, Seng Hok Ling, was also sentenced at Southwark Crown Court (to four years and eleven months) for assisting with transfers that helped launder the proceeds. The Crown Prosecution Service (CPS) said the pair’s convictions cap a complex, multi-agency investigation with the Met Police and international partners.

Lifestyle, arrest and court remarks
Media accounts detail Qian’s extravagant UK lifestyle and attempts to parlay wealth into elite social circles, including efforts to purchase multi-million-pound London property, moves that ultimately triggered scrutiny and helped investigators trace assets. She was detained in York in 2024. In sentencing, the court characterised her role as central and the scale “unprecedented.”
The CPS says it will now pursue confiscation and civil proceedings to keep the crypto and related assets beyond the offenders’ reach and, where possible, facilitate returns to victims. As of 12 November 2025, no public notice of an appeal has been reported by the CPS or court. Officials framed the outcome as a warning to organised criminals that the UK will track and freeze crypto-denominated proceeds across borders.


