Ten people were this morning bailed to reappear in court to face charges that they used stolen credit cards to defraud Apple's online music shop, iTunes.
The suspects, three women and seven men aged between 19 and 46, were arrested by the Met's Police Central E-Crime Unit (PCEU) yesterday in raids across London and the Midlands.
The arrests were the result of a parallel investigation with the FBI that the unit began in February. In a statement, police said that between September 2008 and January 2009 a UK criminal network provided music via an online US company which uploaded the tracks to Apple iTunes and Amazon.com for sale.
Police estimated the gang's modified "pump and dump" scheme instigated music sales of $750,000 using 1,500 compromised UK and US credit cards.
Apple and Amazon, which at the time were unaware of the fraud being committed against them, paid out royalties totalling $300,000 on the sales. They have subsequently been assisting the police investigation.
DCI Terry Wilson, from the PCEU, said, "This has been a complex investigation to establish what we believe to be an international conspiracy to defraud Apple and Amazon.
"This investigation, with its national and international dimension, exemplifies why we have set up this national response to
"We are now making it more risky for criminals who seek to exploit the internet and commit e-crime across national borders."
This is the second high-profile arrest made by the PCEU since it started operations in September 2008. Earlier it tracked down a gang that distributed Trojan malware that stole bank account details from unsuspecting victims.