Sam Poling reports on the multimillion pound world of the dog trade, using secret filming to follow the supply chain and expose Scotland's biggest dog trafficker.
BBC Scotland investigates the multimillion pound world of the dog trade. A third of all dogs bought today are believed to have come from puppy farms. Using secret filming, reporter Sam Poling follows the supply chain, from the small-time illegal sellers to the profit-driven puppy farmers getting rich off this ruthless trade. She exposes Scotland's biggest dog trafficker and uncovers a breeding facility operating on a scale the experts didn't believe existed in the UK - until now.
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