Criminal organisations have the ability to exert secret power - governance over the community and inhibition of opposition (omerta). Traditionally, omerta has been attributed to fear or passivity. Here, a model grounded in different premises, Intracultural Appropriation Theory (ICAT), stresses the central role of culture in sustaining relations of domination between groups. Specifically, ICAT contends that non-state agents achieve legitimacy among people by claiming to embody cultural values shared within the community. In the case of Italian organised crime, criminal organisations' adherence to values of masculine honour bestows legitimacy on their actions, enabling them to exert secret power. We report evidence in support of this proposition, and derive a new formulation of omerta focussing on social identity, emotions and social change beliefs. We suggest that the theory contributes to a new perspective for the analysis of culture, political action, and honour, and that it should generalise in other contexts and countries.
