https://www.theguardian.com/global-development/2018/dec/15/uk-care-system-failing-trafficked-children-lost-and-missing
"In Kent, missing trafficked and unaccompanied children made up 15% of all children in the care of the council’s children’s services. Of the missing children Hunter said, “almost 20% have still not been found and remain in harm’s way”.
Across the UK 38 local authorities reported having at least one child who had not been found, with Kent having the highest number at 38, followed by Rochdale at 17 and central Bedfordshire at 14."