The right-wing Democrats for a Strong Bulgaria (DSB), whose leader Ivan Kostov served as prime minister from 1997 to 2001, has insisted on Filchev's arrest and thorough investigation.
Desničarske Demokrate za jaku Bugarsku (DSB), čiji je lider Ivan Kostov bio premijer od 1997. do 2001. godine, insistiraju na hapšenju Filčeva i detaljnoj istrazi.