Vape shops busted in undercover operation Caerphilly: Undercover teens taking on the illegal sale of vapes to children For our undercover investigation, we sent under 18s onto the high street with hidden cameras. , Out of eight shops visited, five sold nicotine vapes to our underage secret shoppers. In several cases, Illicit Vapes and E Cigarettes Flood Stores as F.D.A. Struggles to Combat Imports The New York Times