This paper aims to provide policy-makers, prison governors and prison and probation staff with information on current practice and issues relevant to managing Violent Extremist Offenders (VEOs) and individuals considered at risk of engaging in violent extremism in a prison and probation context. The paper is structured around these two contexts. While in practice this distinction may not exist in some EU Member States, it serves to identify key issues: prison conditions and reintegration strategies, risk assessment, prison regime choices, rehabilitation and reintegration initiatives, and staff training.