Metropolitan Police Deputy Assistant Commissioner Patricia Gallan is leading the investigation, dubbed Operation Alice.
Deputy Assistant Commissioner Patricia Gallan also did not promise the parents concerned would be informed.
BBC: Dead child identities: Met officer refuses to apologise
Met Police deputy assistant commissioner Brian Paddick met community leaders in Stockwell to discuss the shooting.
Mr Ghaffur is taking legal action against Sir Ian and a junior colleague, Deputy Assistant Commissioner Richard Bryan.
The BBC understands the other two are former Assistant Commissioner Andy Hayman and former Deputy Assistant Commissioner Peter Clarke.
Committee chairman Keith Vaz pressed the deputy assistant commissioner for an apology to the parents whose children may be involved.
BBC: Dead child identities: Met officer refuses to apologise
Met Deputy Assistant Commissioner Steven Kavanagh said it was a "shocking and appalling morning for London to wake up to".
BBC: Further riots in London as violence spreads across England
Metropolitan Police Deputy Assistant Commissioner Brian Paddick said the initial estimates were of 150 seriously injured and "many more" walking wounded.
The inquiry has been transferred to the Met's specialist crime directorate and will be led by Deputy Assistant Commissioner Sue Akers.
The Met's Deputy Assistant Commissioner Steve Kavanagh has admitted there were not enough police to deal with the three days of rioting.
The father-of-two was previously a deputy assistant commissioner with the Metropolitan Police.
Those attending the parade included actor Ian McKellen and the UK's most senior openly gay police officer, Metropolitan Police Deputy Assistant Commissioner Brian Paddick.
After the trial, Scotland Yard deputy assistant commissioner Alan Fry said the police force had worked tirelessly and with tremendous dedication to identify and arrest the bomber.
Deputy Assistant Commissioner Helen Ball said the force launched its Total Victim Care strategy in April 2012 with a renewed focus on improving the service victims of crime receive.
This echoes concerns expressed in June by then Deputy Assistant Commissioner Stuart Osborne, who told Parliament that the Metropolitan Police needed "more than a year" to get the resources and people in place.
Police do not know whether suicide bombers carried out the attacks or whether bombs had been left in packages on the Underground or in buses, according to Brian Paddick, Metropolitan Police deputy assistant commissioner.
Mr Hussain, 45, had claimed that his application to become deputy assistant commissioner was rejected an unprecedented four times, despite it being better than other candidates', due to "unfair treatment in terms of race".
"We are confident we have personally contacted all the people who have been hacked or are likely to have been hacked, " Sue Akers, the Metropolitan Police deputy assistant commissioner in charge of the probe, said in a statement.
Sue Akers, the deputy assistant commissioner leading the police's phone-hacking investigation, responded by issuing a statement Thursday that the police was continuing a recent effort to contact people whose details are included in the documents they seized in 2006.
Pansieri of Italy as Assistant Secretary-General to serve as Deputy High Commissioner for Human Rights.
Police and Crime Commissioner Nick Alston has named one of the the Met's deputy assistant commissioners Stephen Kavanagh as his candidate for the job.
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