The Guardian reports that police chiefs have warned witnesses to flee the scene of a terrorist attack rather than getting their smartphones out to take photos or record video.
Officers highlighted the recent episode at Parsons Green, where images of a partially exploded bomb on a tube train were posted online within minutes.
In the first initiative of its kind, the UK’s counter-terrorism police network is also calling for the “run, hide, tell” message to be routinely taught in schools as part of the national curriculum.
Met police deputy assistant commissioner Lucy D’Orsi, the national policing lead for protective security, said: “We appreciate that talking to young people about terrorism can be scary, for parents and children alike.
“But the atrocities in London and Manchester have sadly resulted in some of the youngest victims of terror this country has ever seen, and if we are able to teach children to act in a way which could potentially save their lives then it is our responsibility to do so.
Police want to see the message taught in schools and colleges to 11 to 16-year-olds as part of the “citizenship” plank of the national curriculum. A “run, hide, tell” emoji has been created for the campaign, which is being supported by celebrities including TV adventurer Bear Grylls and England footballer Jamie Vardy.
Grylls said: “I’ve tackled some of the most dangerous environments on earth, but in the event of a terrorist attack there is only one thing I would advise: run, hide, tell.”
Has your school informed pupils of what to do in the event of an attack? Please tell us your thoughts in comments or via Twitter ~ Tamsin
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