Police in Wales record rise in slavery cases
Cases of slavery in Wales have more than doubled in the last few years, according to police.
Last year 70 people were officially identified by police as victims - up from 35 in 2012, while officers have already dealt with more than 50 cases this year.
The Welsh government said part of the rise is due to better detection.
BBC Wales reporter Caroline Evans was given exclusive access to one of the operations taking place at car washes in Cardiff and Newport on Monday.