Reparations programs have emerged globally as pivotal mechanisms for redressing widespread state-sponsored human rights violations. Their success hinges on a range of enabling factors. Extant scholarship has primarily focused on advances in the international human rights framework, mobilisation by victim movements, and (lack of) state willingness, while the role of non-victimized groups has received scant attention to date. This project aims to develop a comprehensive and empirically grounded theory of how and why public support for victims’ reparations claims emerges and manifests – or fails to – in the aftermath of historical colonial or authoritarian violence. It examines the interaction between (macro) socio-legal context and (micro) intrapersonal beliefs in shaping perceptions and attitudes toward reparations, and if and how these translate into behaviours that may affect the implementation and sustainability of reparatory processes. To achieve this, the study will integrate conceptual models from transitional justice, social psychology, and socio-legal studies, while using advanced qualitative and quantitative methods, including text mining, nethnography and SEM, within a comparative study of two country cases. Building on preliminary work and skills developed during my PhD, this research has the potential to significantly advance our understanding of how reparative interventions can achieve their long-term goals of social repair and transformative change.