By Gary LaFree , · Bo Jiang and· Lauren C. Porter

Abstract Objectives In the current study we consider the link between imprisonment and post-prison participation in violent political extremism. We examine three research questions: (1) whether spending time in prison increases the post-release risk of engaging in violent acts; (2) whether political extremists who were radicalized in prison are more likely to commit violent acts than political extremists radicalized elsewhere; and (3) whether individuals who were in prison and radicalized there were more likely to engage in post-prison violent extremism compared to individuals who were in prison and did not radicalize there. Methods We perform a two-stage analysis where we frst preprocess the data using a matching technique to approximate a fully blocked experimental design. Using the matched data, we then calculate the conditional odds ratio for engaging in violent extremism and estimate average treatment efects (ATE) of our outcomes of interest. Results Our results show that the efects of imprisonment and prison radicalization increases post-prison violent extremism by 78–187% for the logistic regression analysis, and 24.6–48.53% for the ATE analysis. Both analyses show that when radicalization occurs in the context of prison, the criminogenic efect of imprisonment is doubled. Conclusions In support of longstanding arguments that prison plays a major role in the identity and behavior of individuals after their release, we fnd consistent evidence that the post-prison use of politically motivated violence can be estimated in part by whether perpetrators spent time in prison and whether they were radicalized there.

Journal of Quantitative Criminology, (2020) 36:473–498

By Scott H. Decker and David C. Pyrooz

There is considerable speculation that prisons are a breeding ground for radicalization. These concerns take on added significance in the era of mass incarceration in the United States, where 1.5 million people are held in state or federal prisons and around 600,000 people are released from prison annually. Prior research relies primarily on the speculation of prison officials, media representations, and/or cross-sectional designs to understand the imprisonment-extremism nexus. We develop a tripartite theoretical model to examine continuity and change in activism and radicalism intentions upon leaving prison. We test these models using data from a large probability sample of prisoners (N = 802) in Texas interviewed in the week preceding their release from prison and then re-interviewed 10 months later using a validated scale of activism and radicalism intentions. We arrive at three primary conclusions. First, levels of activism decline upon reentry to the community (d = -0.30, p < .01), while levels of radicalism largely remain unchanged (d = -0.08, p = .28). What is learned and practiced in prison appears to quickly lose its vitality on the street. Second, salient groups and organizations fell in importance after leaving prison, including country, race/ethnicity, and religion, suggesting former prisoners are occupied by other endeavors. Finally, while we identify few correlates of changes in extremist intentions, higher levels of legal cynicism in prison were associated with increases in both activism and radicalism intentions after release from prison. Efforts designed to improve legal orientations could lessen intentions to support non-violent and violent extremist actions. These results point to an imprisonment-extremism nexus that is diminished largely by the realities of prisoner reentry.

PLoS ONE 15(11):. 2020. e0242910. https://doi.org/10.1371/journal. pone.0242910

Johan Axelsson, Leni Eriksson & Lina Grip

The literature on terrorism and the rehabilitation of terrorists is growing continuously, but primary studies of high quality are still scarce. In many countries, the number of clients convicted of terrorist offences is increasing. As such, prison and probation services serve as important actors in the prevention of recidivism and radicalisation. This scoping review identifies viable management and treatment methods and approaches to (a) prevent violent extremism in prison and probation services, and (b) manage violent extremist clients in prison and probation services. The findings of twentyseven primary studies highlight the importance of so-called soft approaches by building trust and resilience among violent extremist clients, and facilitating their prosocial engagement. Strength-based models could be considered as an alternative to the predominant risk-oriented practices in prison and probation services.

Terrorism And Political Violence. https://doi.org/10.1080/09546553.2023.2169144, 2023.