“…Research examining the dimensions within the Dark Tetrad has connected the constituent traits with a range of delinquent behaviours, including bullying (Baughman, Dearing, Giammarco, & Vernon, 2012), online trolling (Buckels, Jones, & Paulhus, 2014), juvenile delinquency (Chabrol et al, 2009), racist attitudes (Jones, 2013), and criminal activity (Hare & Neumann, 2008). Alongside this evidence from other domains, modern terrorism researchers cite the consistent early focus on pathology, to hypothesise the causal influence of traits of psychopathy (Baez et al, 2017;Martens, 2004), narcissism (Lloyd & Kleinot, 2017;Tschantret, 2020), and Machiavellianism (Pavlović & Storm, 2020). To determine the strength of these hypotheses, an interrogation of the empirical literature regarding the link between aspects of the Dark Tetrad and radicalisation and terrorism is therefore necessary.…”