Tak Boleh Tahan Protest @ Singapore Parliament police video

This is the police video evidence used in court to charge 19 activists for protesting against price hikes and inflation of cost of living on the World's Consumers' Rights Day (15.March.2008). The policeman who took this video is Station Inspector Amir Rudin from Central Police Division.
The arrest were ordered by Assistant Superintendent of Police Willam Goh, all the police dare not wear uniform for this operation. Their violation of rules of law and incompetence is obvious in the video.
Pay attention to time mark @ 14:49:05 when police injured activist Mr Seelan and @ 14:50:05 Mr Seelan downed on floor of police van pointed out at the violent culprit plain clothe policeman.