Professor Kevin Bales, co-founder of Free the Slaves, explains to Max Foster how his organization calculates the total number globally - and says 30 million is a conservative figure.
Bales examines how different countries face the problem, and explains why Brazil is setting the best example.
Slavery is all over the world, not just developing countries. The film "Eden" is based on Chong Kim's story as a sex slave in U.S. Here she tells Becky Anderson how members of the public stood and did nothing when she tried to run away, and how she plotted her eventual escape.
Sophie Hayes' love story started out like so many Hollywood rom-coms. He was a man she knew and trusted, and who knew everything about her, what made her laugh and cry and what her favorite song was. He was there for her when she had bad days, a quick phone call away in times of trouble. She was just a normal girl and he a normal guy.
But this love story turned into a horror story on a holiday with the man she had grown to love. Forced to work on the streets as a prostitute, emotionally isolated, miles from her British home, suffering mental and physical abuse, rape, and torture.FULL STORY
Anti-slavery campaigner Sophie Hayes has released a powerful campaign to draw attention to the dangers of women who get lured into relationships, only to lose their freedom. Women like her.