The team responsible for cracking down on illegal cabs has been beefed up as part of a renewed effort to snare those who should not be on the road.
An extra 250 compliance officers will be recruited over the next year to patrol the streets of the capital, Mayor of London Sadiq Khan has announced.
It means the team tackling touting and illegal activity in the taxi and private hire trade will quadruple in size from its current number of just over 80.
The team provide a uniformed presence on the streets in the West End, City and other areas across London.
Changes to private hire operator licensing, so that larger firms pay a greater share of the costs of enforcement, will pay for the new officers.