Reuters reported that initially, it was loan-sharking investigation, which turned into multi-billion US bonds and securities fraud that posed serious threats to international financial stability.
The fake securities and bonds, valued more than a third of the US national debt, were seized in January this year from a Swiss trust company where they were kept in three large trunks.
The investigation agencies intercepted the telephone and computers used by eight individuals accused in the fraud and finally unearthed evidence of illegal activity surrounding Treasury bonds.
In 2009, Italian financial police seized $742bn of fake US bearer bonds in Chiasso, on the Swiss-Italian border.
