Dark Justice is a two-man operation based in Newcastle upon Tyne.
Their aim is to catch online predators who try to meet up with children following sexual grooming.
We meet Scott who with Callum came up with the idea in September of last year when they started noticing lots of stories of sexual abuse in the news, and felt that they had to do something about it.
So far, Dark Justice has been responsible for the arrests of 18 men, four of whom have been given custodial sentences.
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