London Riots august 11
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Doubts have emerged over whether Mark Duggan , whose death at the hands of police sparked the weekend's Tottenham riots, was killed during an exchange of fire .
Mark Duggan, whose shooting by police sparked the Tottenham riots, may have held handgun converted to use live ammunition, according to ballistics tests.
A row has broken out between police and the body charged with investigating them over who let down the family of Mark Duggan by failing to keep them informed of what had happened to him. The family of Duggan, shot dead by police on Thursday, said they were angered by the lack of information they received, and that their upset stoked tensions immediately before Saturday's riot in Tottenham. The circumstances surrounding the death are being investigated by the Independent Police Complaints Commission .