The owner of a private Greek munitions factory, Vassilis Papadopoulos, who appeared as the mediator in a thwarted Greek-Saudi arms sale last year, appeared before corruption prosecutors on Wednesday, many months after he was initially requested to provide a statement on the case.

The case concerns the purchase by Saudi Arabia of 300,000 tank shells from state company Hellenic Defence Systems, in which Papadopoulos claimed to represent the Saudis. Prosecutors investigated whether Defence Minister Panos Kammenos had violated anti-corruption rules, as Greek law does not allow the use of intermediaries in transnational arms deals.

Papadopoulos reportedly testified for three hours in the ongoing investigation into the involvement of non-political person in the case and will have to return a second time to the prosecutor’s office.