The initial investigation failed to bring anyone to justice – although two men were jailed in 2012 for Stephen’s murder.
The officers had been investigated by the Independent Office for Police Conduct (IOPC), but last year the CPS chose not to pursue a criminal prosecution after considering a file of evidence.
A victim’s right to review the charging decision was triggered by Stephen’s parents, Dr Neville Lawrence and Baroness Doreen Lawrence, and his friend Duwayne Brooks, who was present during the attack.
The CPS review decision has been issued, but a public announcement might not come for some hours. The has been told the outcome.
It means no officers have been held criminally responsible for what is widely seen as one of Scotland Yard’s biggest disasters.
The four retired officers investigated by the IOPC were:
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Detective Superintendent Ian Crampton, who was senior investigating officer (SIO) for the first four days of the murder investigation
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Detective Superintendent Brian Weeden, who took over as SIO from Mr Crampton and was in charge for 14 months
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Detective Inspector Benjamin Bullock, who acted as deputy SIO under Mr Crampton and Mr Weeden
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Detective Chief Superintendent William Ilsley, who oversaw the team responsible for the first murder investigation
In 1999, a public inquiry led by Sir William Macpherson concluded the first Lawrence murder investigation was “marred by a combination of professional incompetence, institutional racism and a failure of leadership by senior officers”.
The Macpherson report was highly critical of the decision not to make quick arrests.
Arrests did not take place for two weeks despite police receiving information implicating four of the prime suspects within 24 hours of the stabbing.
A 1997 investigation by the police watchdog was also critical, but by then only Mr Bullock was still serving in the Met and therefore available for a disciplinary process.
The IOPC investigation which led to the CPS referral started in 2014 and examined allegations of corruption against a separate officer – John Davidson – who worked on the first Lawrence murder investigation.
This investigation, carried out on its behalf by the National Crime Agency, followed an official review by barrister Mark Ellison KC that said there were outstanding lines of inquiry into allegations of corruption involving Mr Davidson.
Mr Davidson was told in 2019 that he was no longer under investigation, with the IOPC ultimately focusing on the four senior officers from the first murder inquiry, and their handling of the early part of the case.
In 2020, the IOPC passed a file of evidence to the CPS, which was asked to consider whether they may have committed the criminal offence of misconduct in public office.
The criminal offence of misconduct in public office is committed when the office holder acts – or fails to act – in a way that constitutes a breach of the duties of that office.
