TOUGH action is being taken in Huddersfield to clamp down on private hire car drivers who pick up people on the streets.
West Yorkshire Police and Kirklees Council have launched a series of "sting" operations throughout the area, following complaints from the public and hackney carriage drivers.
In a recent cab crackdown outside pubs and clubs in Huddersfield, six local men and one driver from Calderdale were arrested.
All face hefty fines in the courts after being charged with illegally plying for hire.
In Kirklees there are 200 hackney carriages who can legally pick up customers in the street, similar to the London "hailing" style.
But there are also 1,600 private hire vehicles who can only take pre-booked fares and should not tout outside pubs and clubs for business.
Pc Karen Immeson, police liaison officer for taxis, said the operation should act as a stark warning to all private hire drivers that the force was clamping down on such illegal activities.
She said there would be further random operations.
Geoff Holliday, group licensing officer for Kirklees Council, said passengers would not be insured in vehicles in which the drivers had illegally plied for hire.
"We are concerned that people should get home safely and private hire vehicles who illegally ply for hire are not insured for that purpose if involved in an accident," he said.
Mr Holliday said this was a nationwide problem, but there had been a surge in complaints recently from hackney carriage drivers complaining their livelihoods were being threatened.