It's a crime that can be seen in any town and on any High Street and is often ignored, yet modern slavery is on the rise. In the Thames Valley, around three modern slavery crimes are recorded every week, with a 400 per cent increase last year.
Victims are tricked or threatened into working long hours, for little or no pay, but unable to leave due to fear and intimidation - with identity documents stolen or withheld. This week, police have launched a campaign to try to tackle the problem. Cary Johnston reports.
Interviewees: Det Supt Nick John, Thames Valley Police and Nicola Bell of the Rahab Support Project.
Reconstruction courtesy of the Unseen charity.