This article presents a constitutive criminological perspective of the ‘war on terror’. The article will first deconstruct the ‘war on terror’; showing how constitutive criminology provides a framework in which foreign policy, the UK state; the police, and society can be systematically analyzed in relation to one another. Second, the article explores how constitutive criminology enables a critical analysis of the dominant state-centric ‘war on terror’ discourse. The article through discussing the multifaceted ‘war on terror’ demonstrates the relevance of constitutive criminology, as a non state centric approach to critical perspectives in criminology.