The Commission for Racial Equality (CRE) has reportedly told the West Midlands police force it is still breaking race relations law.
The force has been warned twice by the CRE to meet minimum standards that deal with racism in the police, according to the BBC.
It has been told it has until January to sort out the problem, otherwise it could face legal action.
In an interim report published in June this year, the CRE said 14 out of 43 forces were found to be in breach of the Race Relations Amendment Act 2000, which requires them to compile action plans on how to eliminate discrimination and promote equality.
In October, West Mercia Police and West Midlands Police were served with compliance notices, warning them to rectify the situation.
Since then, the West Mercia police force has been passed as fit, but the CRE has told West Midlands Police it has until January to make changes or face the courts.
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The West Midlands chief constable could be held in contempt of court, and could potentially face a jail term, if his force is found to have flouted the law.
