Sunbed shop owners have been warned about their conduct by council chiefs after they failed a mystery shopper test.
Ten sunbed operators offered the use of their sunbed to a 15 year old test shopper last year.
Now the they have been interviewed under caution to establish the reasons for not ensuring that no person under the age of 18 is offered the use of a sunbed.
Interviews uncovered there was a lack of management controls in place and many of the operators claimed to have been distracted at the time of the test purchase.
As a result Preston Council issued eight simple cautions.
Coun John Swindells, deputy leader of Preston Council said: “Young people are more vulnerable to skin cancer from use of sunbeds. We will work with sunbed businesses across the city to prevent this from happening by providing future training, advice and materials to help them comply with the law.
“Future test purchasing will be carried out and the aim is to find 100 per cent of our sunbed premises complying with the law.”