The Metropolitan Police says it recovered 61,000 bitcoin worth more than £5bn ($6.7bn) in current prices. Between 2014 and 2017 she led a large-scale scam in China which involved cheating more than 128,000 victims and storing the stolen funds in bitcoin assets, the Met said in a statement. It said the 47-year-old's guilty plea followed a seven-year probe into a global money laundering web which began when it got a tipoff about the transfer of criminal assets. "This case, involving the largest cryptocurrency seizure in the UK, illustrates the scale of criminal proceeds available to those fraudsters." The BBC has contacted the Chinese embassy in the UK for comment.