Suspected cases of modern slavery victims in the UK have tripled since 2013, fuelled by inner city children trafficking drugs.
Last year, 5,145 potential victims were referred to the National Crime Agency (NCA) – up from 1,745 in 2013 – many due to fears that children and teenagers are being exploited to sell heroin and cocaine.
For the first time, UK nationals now make up the majority of modern slavery victims reported to the NCA.