Trafficked and enslaved: the teenagers tending UK cannabis farms

Vietnamese teens are tending Britain's makeshift drug factories in empty buildings from suburban homes to a nuclear bunker. Here are their stories

From the first-floor window of the flat where he was incarcerated, 15-year-old Tung began to piece together what the UK was like. He liked watching the busy road with three or four shops, a pizza restaurant and a petrol station. He had been told never to turn on the light, so he often sat by the window in the dark, peering out from the side. "Where I lived in Vietnam was a very remote area, just trees and dirt tracks. We rarely saw a car. I found it all so surprising."

He was locked in the flat alone for two months. "It was terrible, the first month. I wanted to go out, to talk to someone. I almost felt like I was going mad. But by the second month I was getting used to it."