reporter: the white-haired man here is the focus of the protesters' anger -- liviu dragnea, chairman romania's social democrats, here on his way to be questioned by anti-graft prosecutors. dragnea was ineligible to become prime minister because he was convicted of election fraud and is accused of misusing european union funds. but he is viewed as the mastermind of the proposed "reform" of the justice system that would weaken romania's public prosecutors and rewrite the penal code. dragnea seems unfazed by criticism from the european commission. liviu: with all due respect, you should inform yourselves better. reporter: judge horatiu dumbrava is flabbergasted by the new draft for the penal code. it would ban police and public prosecutors from using video or audio recordings as evidence. he shows us examples on his computer -- in one case, the camera documents corrupt politicians taking bribes. another catches a pedophile molesting children in an elevator. dumbrava says the justice reform would mean such footage could no longer be used. horatiu: this kind of technical forensic evidence