The 61-year-old Kolar, a former long-standing HSS parliamentarian and head of the Molve municipality, is indicted for abuse of office just as Radic. Tos, the private construction company's owner, is indicted for having incited them to perform financial wrongdoings.
The municipality, while its mayor was Kolar, and the Jata construction company concluded several contracts, although there was no legal basis for it, resulting in payments to the company.
All the three suspects were kept in custody in May until witnesses were interviewed. They were released after being detained for 25 days.
Kolar was at the helm of Molve, near the northern town of Djurdjevac, until the last local election when Stjepan Fosic of the Croatian Democratic Union (HDZ) won the polls.
HSS leader Josip Friscic announced Kolar's suspension as soon as the scandal broke.