CAB drivers will try to bring London to a standstill tomorrow in a day of action against the planned deregulation of the industry.

London Mayor Boris Johnson and Transport for London have imposed a series of “improper and unlawful decisions” on the taxi trade, including allowing more unregulated cabs and ending criminal record and vehicle checks on drivers.

The new policies are a “hammer blow to the taxi and private-hire industry,” said GMB professional drivers’ branch president Steve Garelick.

Transport unions RMT and Unite will also support the cabbies’ action.

RMT acting general secretary Mick Cash said the profiteering attack from Mr Johnson and his friends in wealthy global corporations was “nothing short of a scandal.

The demonstration will start at Trafalgar Square from 2pm after London Assembly mayoral questions on the issue at 10am.