Human trafficking is described as a 'hidden' crime that is often under-reported.
Figures show in Wales:
- The number of trafficking victims increased by 48% from 2011 to 2012
- Only 34 people reported a problem
- Almost a third of those cases were for sexual exploitation
- Ten of the victims were aged 17 or younger
Experts say the figures don't represent the scale of the issue - often because the victims themselves aren't aware they are being exploited.
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