Desničarski Demokrati za jaku Bugarsku (DSB), čiji je lider Ivan Kostov bio premijer od 1997. do 2001, insistirali su na hapšenju i temeljitom ispitivanju Filcheva.
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.