Following the withdrawal of the most recent trial into the murder of Daniel Morgan, the Metropolitan Police and CPS have issued their joint review commissioned in March last year.
The trial judge said this case was of an exceptional scale and complexity, with over three quarters of million documents gathered over 20 years being examined.
The issues around the disclosure exercise were such that we could not guarantee that all relevant material had been identified, considered and disclosed so as to ensure a fair trial. A further factor related to the unreliability of critical witnesses.
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The victim, who was also 15, was stabbed repeatedly just yards from the Capital City Academy School in Willesden.
Crossrail contractors have been hit with a fine of more than a million pounds over the death of a worker and other incidents.
Anh Nhu Nguyen, 52, claimed he lived in the North Kensington block and that his wife and son had died in the fire.