Twitter users left furious after police refuse to take part in Mark Duggan fly-on-the-wall documentary

Viewers took to social media after being left furious over a BBC documentary about the "lawful" killing of 29-year-old Mark Duggan on August 4, 2011.
The initial hope for the 90-minute fly-on-the-wall project was to resolve what really happened the day Mark was fatally shot by police.
Officers said they believed Mark, whose killing is believed to have sparked the London riots, was armed with a gun.
It was later revealed the victim, who left a young daughter behind, was not armed.
The jury still ruled his killing as lawful because the officer who shot Mark believed that he was carrying a weapon.
Viewers tuned in to watch the documentary in the hope that some light would be shed on the killing.
They were left outraged when they realised the Metropolitan Police had refused to take part.
A narrator confirmed in the introduction of the programme: "The Metropolitan Police chose not to participate in the making of this film but we will hear the officers' own words by dramatising their inquest transcripts."
Many Twitter users reacted on social media, questioning why the police were not participating in the documentary.
Some speculated whether there was any wrongdoing on the Met's part at the time.
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One viewer tweeted: "Metropolitan police did not want to take part in the documentary #lawfulkilling #MarkDuggan."
Another posted: "Minor convictions, yet one of the most wanted in europe, really?! And the Met didn't want to do this prog #markduggan #lawfulKilling."
Another tweet followed shortly: "And the police didn't want to take part in BBC1's #MarkDuggan documentary...why? Nothing to hide, eh?"
Another viewer added: "Wonder why the racist police didn't want to take part lol bunch of clowns that was so needed we go no chill for bulls**t simple #MarkDuggan."
Police watchdog deputy chairwoman Rachel Cerontyne admitted in the documentary she wasn't sure she had uncovered the truth about what really happened to Mark.
At the end of the programme she reveals: "It's not very satisfactory when you put so much effort in your search for the truth - and you can't be absolutely certain that you've found it."