The check-in desks of hotels are becoming the front line for detecting victims of human trafficking.Read more
BBC News education and family correspondent
African migrants' journey through the Sahara desert comes at a terrible risk.
Every year criminals force millions of people to travel by air, to become sex workers or be used as labour in modern slavery. The BBC's Russell Padmore has been investigating efforts by airlines and airports to stop an illegal trade, which is worth billions of dollars. (Picture: Gatwick Airport departures area. Loop Images/UIG.)
In Spain, hundreds of mothers are looking for a son or a daughter. They believe their child was stolen at birth and then given away or sold.