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The UN beleives that over a million children every year are trafficked into slavery.

It’s a huge figure, and charities and N.G.O’s all over the world are working to try and reduce the numbers.

But one Australian charity has taken matters into its own hands.

It’s called “The Grey Man” and its a group made up of former SAS soldiers and police.

So how do you catch child traffickers? I spoke to the President, who goes by the name of John Curtis.