Veteran showbiz columnist Cristy Fermin has been summoned by the National Bureau of Investigation following a complaint filed by actress Claudine Barretto. 

The NBI issued a subpoena requiring Fermin to present her side and address allegations connected to cyberlibel and defamatory statements raised in Barretto's complaint.

Legal representatives for the actress filed the case after claiming that unauthorized and malicious remarks were aired against her. NBI investigators are scheduled to conduct preliminary questioning to determine if there is sufficient ground to pursue formal charges in court.