Police are warning new learner drivers to make sure their instructor is properly qualified, after roadside checks found some who were giving lessons did not have a license.
Thirty roadside operations have been carried out by the Driving Standards Agency since 2011 to target illegal instructors in England, Scotland and Wales.
On average a suspected illegal instructor is reported to the organisation every day.
Vasim Choudhary, a DSA fraud investigator, said: “They sticker up their car to look like reputable driving schools, and candidates presume they are legal when they are not.
“A qualified instructor will teach you skills which will set you off on your driving career, so you can be a safe driver for life, as opposed to someone who might just teach you skills which are very limited.”