Biometric States and Digital Surveillance: Human Rights in an Age of Datafied Governance

The state's capacity to see its population has expanded beyond anything the drafters of the postwar human rights instruments could have imagined. Biometric identity systems, facial recognition, and the fusion of once-siloed databases now let governments identify, sort, and track individuals at a scale and granularity that reconfigures the relationship between citizen and state. India's Aadhaar, enrolling over a billion people, has become the template for identity-linked governance across the Global South, celebrated for delivery efficiency yet repeatedly implicated in exclusion when authentication fails and entitlements, food rations, pensions, wages, evaporate for those the system cannot read. China's integration of facial recognition, movement data, and predictive policing in Xinjiang represents the extreme, where biometric capture underpins the mass internment and control of the Uyghur population. Between these poles lies a spreading grey zone: national ID rollouts, migration and border biometrics, welfare-linked authentication, and commercial surveillance repurposed for state ends. The human rights stakes are not confined to privacy, though privacy law strains visibly against these systems. Datafied governance redistributes power itself, rendering some populations hypervisible and others, the undocumented, the misrecognized, the erased, invisible in ways that determine access to rights, benefits, and recognition as a legal person. Biometric technologies thus function simultaneously as instruments of inclusion and of exclusion, and increasingly as tools through which marginalized communities are governed, disciplined, or written out. The pressing analytical questions concern how surveillance infrastructures reshape the substance of citizenship, why the same technology empowers delivery in one setting and repression in another, whether existing legal frameworks can constrain systems designed to be frictionless and total, and who is accountable when the database, rather than the official, decides. These dilemmas now sit at the center of what human rights protection means in a digital state.