"The prosecution of Kaposvar submitted documents on the case of Radimir Cacic, the president of the Croatian People's Party-Liberal Democrats (HNS), to the local court of Mako in southeastern Hungary on Wednesday," the spokeswoman of the Somogy county office told the Hungarian news agency.
Two people died in the accident on January 8, 2010, one person sustained serious injuries and a fourth light ones, Gyongyi Lucza Egervari was quoted as saying.
"Police said earlier that Cacic, driving from Nagykanizsa to Budapest, had failed to adjust his speed to the prevailing visual conditions, and failed to notice a slow-moving car in front of him which he crashed into."
One victim died the day after the accident, while the other, an elderly woman, died a little later.
Cacic left Hungary after posting bail on the day of the accident.