Senior TVB news librarian Lam Ka-yu has told the court that he believed the news footage which showed the alleged assault of social worker Ken Tsang was not altered, Apple Daily has reported.
Civic Party activist Tsang was filmed allegedly being kicked and punched by seven police officers during the 2014 pro-democracy Occupy protests. All have denied charges of wounding and striking with intent to do grievous bodily harm. One police officer who was charged with an extra count of common assault also pleaded not guilty.
Lam was responsible for burning video clips purportedly showing the altercation from a server on to blu-ray discs on the night of incident. He said a pass code is required in order to connect to the server, but the code does not allow modification of content. He added that he believed the server was not interfered with before the clips were burned that day, RTHK reported.
Prosecutors previously submitted four news clips, from TVB, ATV, Now TV and Apple Daily, as evidence in court, but defence lawyers challenged their authenticity.
Also testifying during the case was former ATV senior video editor Chim Yat-kin. He said he did not know the identities of cameramen, video editors and post-production staff who were responsible for the footage.
He added that one clip was not submitted to the police because it could not be found, Stand News reported.
Another witness, station sergeant Cheng Ho-cheung, identified himself as the person who subdued a man “in black clothes” in the ATV news clip. He said the footage coincided with his memory of the night, but added that it was an incomplete picture of what happened, Ming Pao reported.
Tsang did not testify at court on Friday, as it is estimated that a cross-examination with Tsang would take long. According to Tsang’s personal Facebook page, he may be called to appear in court next week.
The case was adjourned until next Monday.