With an emphasis on the UK’s non-return policy, the current chapter tackles the intricate justice conundrum pertaining to the treatment of women and children connected to the Islamic State (IS). It makes the case for a change from a counterterrorism paradigm to one that is justice-oriented, questioning national security defenses and highlighting the importance of accountability and due process. The chapter concludes that repatriation of individuals held in North East Syria is the most urgent just result, based on stakeholder interviews. It argues that the UK’s strategy violates international commitments to prosecute, deport, and rehabilitate IS-affiliated persons and undercuts justice efforts.