Europol: 'Catching up with traffickers'
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Europol: 'We are catching up with human traffickers'

Europol's Angelika Molnar tells BBC Scotland's Sam Poling the "traffickers are always one step ahead but we are not far behind".

Watch BBC Scotland Investigates: Humans for Sale on BBC One Scotland at 21:00 on Wednesday 10 May at 21:00.