The Prevent Agenda, introduced in 2006, is a counter-terrorism strategy aiming to address radicalisation and extremist behaviour. This systematic literature review (SLR) focuses on its impact on child protection social work, examining how it influences roles, responsibilities and decision-making processes. Analysing articles, governmental reports and relevant literature, the review explores outcomes, such as improved inter-agency communication and heightened awareness of radicalisation risk factors. However, much more pronounced in the literature are very significant concerns that arise about potential biases in targeting, marginalising Muslim minorities and alienating families from support. This SLR offers insights into the multifaceted effects of Prevent on child protection social work, families and communities. Identifying trends and knowledge gaps contributes to understanding how counterterrorism intersects with child welfare. The review’s implications inform policy, professional training and future research for a balanced approach to national security and child and family well-being.