London riots: Mark Duggan brother's concern over IPCC probe
Mark Duggan's brother Shaun Hall has said he is "concerned" about the latest developments in the police watchdog's investigation into his brother's death.
Two members of a community panel set up to oversee the IPCC's inquiry into the Mr Duggan's shooting recently quit.
One of them, Stafford Scott, said he had concerns over the removal of evidence from the shooting scene.
The IPCC has said: "The time to pass judgement on our investigation is when it is complete."
Mr Duggan was shot dead by police in Tottenham, north London, in August.
Rioting in the area followed, with the unrest spreading across London and to other parts of England.
Police watchdog the Independent Police Complaints Commission (IPCC) set up an investigation into the shooting.
In the past week, Mr Scott and John Noblemunn stepped down from the panel. The third member, Pastor Nims Obunge, has not resigned.
Mr Scott claimed the minicab in which Mr Duggan had been travelling before being shot was removed from the scene before IPCC investigators arrived. It was later returned to the scene.
He said, three months into the investigation, he was told that the IPCC sanctioned the decision to remove the vehicle.
"That really goes to the heart as to whether or not this organisation is truly independent," he said.
When asked if these latest allegations about the removal of evidence from the scene caused concern, Mr Duggan's brother responded: "That definitely causes concern."
He added: "We want the IPCC to do the correct job."
"If they're not the people for the job then we ask that they were replaced and someone with the stature and ability can take over that investigation and come to the right conclusion."
Commenting on Mr Scott's resignation from the panel, he said: "I think the community and London as a whole has lost a good link through Stafford Scott."
"He was a good liaison for the police if they had used him in a proper manner."
Rachel Cerfontyne, IPCC commissioner, has said: "As the commissioner I have every confidence that this investigation is thorough, robust and independent."