Almost a third of smokers in Torbay admit buying illegal tobacco with one in five across the south west saying they've bought bootleg supplies.
The shock findings come on the day the police and revenue and customs launch a fresh crackdown on the illegal trade which is often linked to organised crime.
Bob Gaiger is from HM Revenue & Customs:
More top news
A man has died after his car collided with a lorry at an accident hot-spot on the border between Devon and Cornwall.
More police in Devon and Cornwall could be armed with Tasers to protect them from assaults. The force is reviewing their use.
Prepare to get wet - the next band of rain is on its way for a wet and breezy day.