The mayor's advisor for policing, Kit Malthouse, denied the claims, saying Mr Belgrave was a disgruntled ex employee.

BBC: Mayor Boris Johnson's violent youth scheme criticised

But Kit Malthouse, Mr Johnson's successor as chair of the Metropolitan Police Authority, said the plan would bring police closer to communities.

BBC: Elected police commissioners bill planned

Kit Malthouse, the chairman of the Metropolitan Police Authority, said "very significant" changes to policing techniques had been made since the errors took place.

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