“…This makes accessing interviewees extremely difficult, especially Channel mentors—who are often imams or who have some other responsibility over their communities and do not want to appear as government “stooges” (Interviewee 10, Channel mentor). This piece builds on the many critiques of the hegemonic “radicalization” discourse, which highlight a lack of scientific rigor underpinning key concepts, and the discursive construction of pre‐crime risk (Ahmad & Monaghan, 2019; Baker‐Beall, Heath‐Kelly, & Jarvis, 2014; Githens‐Mazer & Lambert, 2010; Heath‐Kelly, 2013; Kundnani, 2009; Martin, 2014, 2018; Silva, 2018). While the definitional ambiguity surrounding terrorism preemption has been widely documented (Elshimi, 2017; Elshimi, 2017; Lowe, 2017; Richards, 2011; Sedgwick, 2010), little empirical work has been undertaken to explore how contested terms like “radicalization,” “extremism,” and “de‐radicalization” are navigated in practice through Prevent's operation.…”