'They didn't know they were victims': revenge porn helpline sees alarming rise

Victims and their loved ones report sense of powerlessness in face of flawed laws and mixed police responses

On a business estate in Devon, Jade sits at a computer screen and hovers her mouse over an innocent selfie of a young woman from Scotland. In a matter of seconds, she is led down the internet's tunnels and diversions deep into what was once the private world of the 21-year-old.

As she follows the digital trail, scores of explicit, intimate pictures of the young woman appear, originally taken for a boyfriend but now traded as porn across the web.