Warning: some people might find the footage in this report disturbing.
CCTV footage of the hours leading up to death of a man in police custody has been shown in public for the first time in seven years – after a coroner overseeing the case of Leon Briggs agreed to a request by Channel 4 News to release the video.
The 39-year-old father is shown being restrained by police officers while suffering a psychotic episode on a Luton high street in 2013. An inquest has heard that Mr Briggs was detained under the mental health act but lay dying in a police cell an hour later.