In 2011, a trial of four men charged with Daniel Morgan's murder in 2008 collapsed following alleged failures by the police and the Crown Prosecution Service.
At the time, Det Ch Supt Hamish Campbell of the Metropolitan Police Service said:
We recognise the severe disappointment this will cause and how deeply upsetting it is to Daniel's family and friends.
Thousands of lines of inquiry have been pursued since 1987 and over three quarters of a million documents have accrued and been examined.
On behalf of the Metropolitan Police Service I sincerely apologise to Daniel Morgan's family and it is with considerable regret that a trial cannot proceed.
This current investigation has identified, ever more clearly, how the initial inquiry failed the family and wider public. It is quite apparent that police corruption was a debilitating factor in that investigation. This was wholly unacceptable.
More top news
Heavy rain that has caused extensive flooding has left vehicles submerged and public transport severely disrupted in Aberdeen.
A slow start for most of us tomorrow with dribs and drabs of rain leaving some of us with a soggy journey into work.
The chief executive of one of the 'big six' energy companies tells ITV News a report customers are paying too much is a concern.