Mines which account for violations up to 10 per cent are categorised as 'B', and those over 10 per cent are 'C'. File Photo

Chief Minister Siddaramaiah on Tuesday said that criminal cases will be slapped against all ‘B’ and ‘C’ category mining companies (firms that have carried out illegal mining), besides imposing fine on them as per the recommendations of the Central Empowered Committee (CEC) of the Supreme Court.