
It is notoriously difficult to work out how and why someone becomes a terrorism risk. While attacks cause immense pain and suffering, the actual number of terrorist incidents in the western world is small. That makes it difficult to arrive at reliable, quantified evidence.
But in our research, we’ve started to identify important patterns when it comes to different journeys into extremist offending. Most notably, we’ve found that in recent years, people who go on to be convicted of terrorist offences are far more likely to have been radicalised online – without any offline interactions at all – than was the case in the past.