The UK's largest police force has discussed changing the law in order to recruit more non-white officers.
The Metropolitan Police say they are restricted from using recruitment to better reflect the local population.
A model has been suggested where for every white recruit, one ethnic minority officer would be taken on.
The Home Office said the idea of positive discrimination had been discussed at a high level but there were no plans to change the law.
In London 45% of the population classified themselves as "white British" in the 2011 census. But the police officers serving the city remain overwhelmingly white.
Despite 17% of the Met's new recruits coming from an ethnic minority background, around nine out of 10 officers in the force are white.
Home Office officials are currently working with the Metropolitan Police and the College of Policing to change the ethnic make-up of the force as it lifts a freeze on recruitment.
The Met wants to recruit 5,000 new officers by 2015 and is considering changing the recruitment process and providing bursaries, coaching and extra training for ethnic minority candidates
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