Matthew Francis is executive director at the Centre for Research and Evidence Threats, based at Lancaster University, UK. His research has focused on the move to violence in religious and non-religious groups. He founded and is the editor of the website RadicalisationResearch.org and the quarterly magazine CREST Security Review. Kim Knott is professor of religious and secular studies in the Department of Politics, Philosophy and Religion at Lancaster University, UK. She works in the study of religions, using sociological and geographical approaches in particular to research relationships between the religious and the secular. She is currently the deputy director of the Centre for Research and Evidence on Security Threats.