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While millions of us use dating apps and websites, many are unaware of the risks of 'stranger rape'.

Sean Sutton, from the National Crime Agency, says dating apps can create a false idea of intimacy, which may put people in danger.

Serious cases like the murders committed by Stephen Port are relatively rare, says Mr Sutton, but there are ways to avoid putting yourself at risk.

(Photo: Person using phone. Credit: iStock)