A depraved guide to stabbing police and military personnel was released by Islamic State three months ago – and is still available on the internet. It was issued to potential ‘lone wolf’ terrorists by the terror group’s recruiters based in Syria....

The image offers detailed instructions for where to stab someone if they are wearing body armour.


The video originally appeared on the Telegram messaging service, increasingly favoured by extremist groups.

Last week it emerged that guides to mounting a car terror attack were also available on Google and Twitter.