Swedish police have confiscated servers in Sweden at the request of US authorities as part of a massive money laundering investigation of Costa Rica-based digital currency service Liberty Reserve.
The raid was carried out in the Stockholm area last Friday, resulting in the confiscation of a number of servers suspected of playing a role in moving billions of dollars in digital currency around the world.
"It was obviously a system that could be used for money laundering," the man, who wished to remain anonymous, told the Dagens Nyheter (DN) newspaper.
Prosecutors in the United States unsealed an indictment on Tuesday, alleging the operators of Liberty Reserve were behind a $6-billion criminal money laundering scheme US authorities labelled "the largest international money laundering prosecution in history".
"As alleged, the only liberty that Liberty Reserve gave many of its users was the freedom to commit crimes – the coin of its realm was anonymity, and it became a popular hub for fraudsters, hackers, and traffickers," US Attorney Preet Bharara said in a statement.
Founded in Costa Rica in 2006, Liberty Reserve ran a digital currency trading system that boasted over one million users who could transfer money by submitting only a name, e-mail address, and birth date.