Lambros Liosis, the head of the budget department, was arrested last Friday, sources told Kathimerini. He is to be charged with breaching privacy and state secrecy laws. Both are felonies.
Liosis is accused of leaking to Internet sites a document sent to him and two other officials by Staikouras, which set out positions the minister would adopt in discussions with the troika.
The document that surfaced on the Internet was a photo of the document sent to Liosos. It had his name on it.
Sources have suggested that Liosis may have printed the document and left it on his desk, allowing another employee at the Accounting Office to photograph it and leak it.
Liosos has denied leaking the information, arguing that someone in his department is likely to have copied the document in his absence.