“We spoke to former prison governor Ian Acheson. He’s now the Senior Advisor to the Counter Extremism Project. We began by asking him why Prevent missed so many signs to stop Axel Rudakubana before he went on to kill. Ian Acheson: We don’t have the full facts of a public inquiry and we will get those. But on the face of it, it does look like Prevent has failed to detect his descent into murderous violence. Prevent, I think, is overwhelmed by trivial referrals still, which is obscuring the risks posed by very dangerous people and distracting them from their core mission. Secondly, tendency of practitioners to see young people who are in trouble solely through the lens of vulnerability, not the risk they pose to others…”