West Midlands Police is facing legal action if it does not remove all cameras controversially put up in largely Muslim areas of Birmingham.
More than 200 covert and overt cameras were installed in Washwood Heath and Sparkbrook, paid for with government money to tackle terrorism.
The force said the covert ones had been removed after uproar from residents. But Liberty plans to start a judicial review if there is no commitment made to remove the rest within two weeks.