Bernard Arnault appeared as a witness to address his association with Bernard Squarcini, a former French spy hired by LVMH as a security consultant.
Squarcini, who led France's domestic security services from 2008 to 2012, is accused of illegally collecting personal information and violating privacy laws while working with LVMH.
This was allegedly done to fight counterfeiting and monitor activists planning protests against the company. The trial has placed LVMH under scrutiny over its surveillance practices amid efforts to protect its brand.
Arnault is not personally accused of wrongdoing, has denied knowledge of the surveillance, and has maintained LVMH’s commitment to legality.
During his three-hour testimony, Arnault answered questions from lawyers representing French politician François Ruffin. Squarcini's firm monitored Ruffin, who released a 2017 documentary, Merci Patron!, about LVMH’s treatment of workers.
Arnault dismissed the film as "very funny" and accused Ruffin of using the trial for political gain.
“Mr Ruffin is interested in showing off on my back, and unfortunately, it hasn’t worked for him,” Arnault told the court.
“In terms of employment, I have done much more than Mr Ruffin in parliament. He doesn’t go there very often from what I hear. Is it normal for Mr Ruffin to mess around with justice to promote a new book or film?”
As reported by The Guardian, Squarcini faces 11 charges, including influence peddling, misuse of public funds, and compromising national security information. Lawyers for Squarcini have indicated that he would plead not guilty.
WATCH VIDEO
More reading
Global uncertainty impacts revenue for LVMH
10 years: LVMH and Formula 1 agree to massive deal
Olympic Games: Jewellery and watch brands shine in the spotlight
Vigilant: LVMH shakes off underwhelming first half
LVMH boss throws cold water on Richemont rumours
Management reshuffle continues at major luxury brands
Kings of luxury: New research highlights Pandora's dominance
LVMH boss owns stake in luxury rival Richemont