calin popescu tariceanu: these are excesses and violations on the part of the justice system.at the european commission has praised romania for tackling corruption. but the investigators are abusing their authority. reporter: they hope to stop this alleged abuse with a new law. it still must be passed by parliament, where its supporters include mp's who are currently under investigation. but now investigators have found an ally in romanian president klaus iohannis. in an exclusive interview with german public broadcaster ard, he spelled out how he'll react should he be asked to sign off on the proposed changes to the criminal code. president iohannis: the president can send any bill or draft law back to parliament and the parliament will have to deliberate on it again. and if that doesn't work, then the president can appeal to the constitutional court. reporter: are you considering doing that? president iohannis: yes, i seriously am. reporter: president klaus iohannis knows that he has the vast majority of the population behind him. while some politicians think prosecutors are