Liechtenstein prosecutors say they have launched a preliminary investigation against a man at the center of an international tax evasion scandal.
The man is suspected of stealing sensitive customer data from a Liechtenstein bank and selling it to German investigators.
Prosecutors say Heinrich Kieber and unidentified suspects are being investigated for allegedly leaking company secrets to a foreign entity. Liechtenstein authorities are sending requests for legal assistance to prosecutors in the German cities of Bochum and Munich.
Germany says its intelligence service paid an informant as much as euro5 million (US$7.3 million) for a list of account holders, sparking a large tax evasion probe.