The former Slovenian prime minister, Janez Jansa, has gone on trial along with four others over alleged bribery in the country’s biggest defence deal. The allegations concern bribes that were allegedly paid during talks on a €278 million contract to buy 135 armoured vehicles from the Finnish state-run weapons-maker, Patria.

Mr. Jansa, who was prime minister from 2004 to 2008, denies the charges and maintains that they are part of an opposition party smear campaign.