London mayor Boris Johnson will on Thursday launch a review of measures introduced to eradicate racism within the Met Police.
Johnson will launch the review alongside Met Commissioner Bernard Hogan-Howe, which is due to report in the autumn.
In 2008, the mayor commissioned a Race and Faith Inquiry looking into racism in the force. As a result of the inquiry, the Met said it would open up senior positions to people from different backgrounds, even if they had not started working as a constable.
The report also said it should be easier for staff to apply for internal promotions and transfers.
Mr Johnson said he wanted the force to "build better relations with the communities it serves".
He said: "The commissioner and I are in absolute agreement that racism within the Met, whose officers and staff are in a special position of trust, will not be tolerated.
"We are committed to driving forward the changes needed to ensure the Met provides an excellent level of service to the entire community."
Mr Hogan-Howe said: "I have made it clear that I will not tolerate racism within the MPS and we will deal with it robustly wherever it occurs."
The Met Police has been rocked by a number of allegations of racism since 2008. Most recently 10 new complaints of racial abuse were referred to the police watchdog last month, prompting a number of high-profile critics to speak out against the force.
Superintendent Leroy Logan, of the Black Police Association, said that warnings of racism at Scotland Yard have fallen on "deaf ears" for more than a decade.
A former member of the Stephen Lawrence inquiry panel, Dr Richard Stone, said that blame for routine racism within the Met rested with senior officers and is more endemic than Britain's biggest force is willing to admit.
At the time, Deputy Commissioner Craig Mackey insisted "the Met does not tolerate racism" and said in a statement that "what is reassuring for me is that in the ten cases that have been referred to the IPCC, six involve other officers who have stood up and raised concerns, showing that we are an organisation that will not stand for any racist behaviour."