She says former AG Tommy Thomas conspired with Sri Ram to 'persecute' her.
The defence claims that no such letter of appointment was made, saying they are considering whether to apply for a mistrial.
He says the documents which are vital to his trial were not made available to his defence team before his case began.
HRW says police, prosecutors and courts have been placed under pressure to 'deliver swift and harsh punishment' in the name of counter-terrorism, causing many to be imprisoned without committing any genuine offence.
Judge says there is no merit to Najib's allegation that Sri Ram was involved in the investigation against him.