Online sexual predator Dale Michael Tyson POLICE have warned children and young people to be extremely cautious online after an internet sexual predator was jailed for 10 years. Dale Michael Tyson, 30, manipulated 10 youngsters in two countries to send him sexual images and engage in sexual activity for his gratification, York Crown Court heard. North Yorkshire Police believed there were far more victims of the Harrogate pervert. Detective Sergeant Steven Alderson said: “This case really highlights the fact that it is almost impossible to know if the person you are speaking to online is who they claim to be. "Tyson pretended he was a young north American man to create connections with his victims so that he could manipulate them into sending graphic images of themselves which he then used for his own gratification.