In this article we use qualitative data drawn from a sample of child protection cases to demonstrate how the process of attributing blame to parents and carers for child maltreatment is a significant influence on decisionmaking, sometimes to the detriment of assessing the future safety of children. We focus on two cases which both demonstrate how the process of apportioning blame can lead to decisions which might not be considered to be in the best interests of the children concerned. We conceptualise blame as an ‘ideology’ with its roots in the discourse of the ‘risk society’, perpetuated and sustained by the technology of risk assessment. The concept of blame ideology is offered as an addition to theory which seeks to explain the influences on decision making in child protection practice.