BBC Scotland investigates the multibillion-pound world of the criminal tobacco trade. We discover that more than half of all hand rolled tobacco in the country is now either counterfeit or smuggled, and one in five cigarettes smoked is fake. Using secret filming, we expose the gangs which are costing British taxpayers four billion pounds in lost revenue a year. Taking you to the heart of the supply chain, we buy directly from the criminals and reveal their products are the most poisonous ever discovered in the UK. And with exclusive access to customs investigators, we watch as they take out a major organised Chinese tobacco gang which has set up home in Scotland.

Film Duration: 28 min .