"The number of potential child sex slaves identified was 217, 105 of whom are UK citizens, a 64 percent increase from 2014.
The Salvation Army won the government contract to run safe houses for victims of modern-day slavery in 2011. Anne Read, the anti-trafficking director, said 380 victims came into the service in the first year.
But in the past six months alone, they have taken in over 1,000 victims, bringing the total number of those who are referred to the Salvation Army for support to over 4,000."
They say this is just the tip of the iceberg.