A witness appeal has been made exactly a week after Mark Duggan was shot dead in Tottenham.
The death of the father-of-four, who received a gunshot wound to the chest last Thursday, was a trigger for the first night of rioting in north London on Saturday.
The Independent Police Complaints Commission (IPCC) has handed out leaflets to members of the community, appealing for witnesses as part of their investigation into the circumstances surrounding the 29-year-old's death.
Mr Duggan was a passenger in a silver Toyota Estima people carrier minicab which is believed to have been stopped by police. He was shot last Thursday, August 4, at 6.15pm in Ferry Lane near to Tottenham Hale Tube station. He was pronounced dead at the scene at 6.41pm, the IPCC said.
Meanwhile, it has been reported that Mr Duggan's family has requested a second post-mortem examination be held.
Ten IPCC investigators handed out leaflets at the scene of the shooting, accompanied by community activists.
Officers are now trawling through CCTV footage of the incident, as well as recordings of 999 calls and radio transmissions.
Ken Hinds, a member of the IPCC Community Reference Group that will scrutinise their investigation, said: "I don't know if our community is comfortable with the IPCC - there are concerns from the past history.
"People like myself are determined that it will be as transparent and as thorough as it needs to be. If they come forward, people can have an impact on this investigation. There are concerns around the police, so I wanted to put myself forward to reassure others and assist them."
Describing the feeling a week after the death of Mr Duggan, he added: "I think people have vented their anger. The primary reaction was of frustration. I don't condone the aftermath of what we saw and I believe it was totally preventable."