Legal challenges of biometric immigration control systems

This article analyzes the deployment of biometric systems in immigration control. It argues that public policy for biometric data collection and processing must be based on legal principles and involve the participation of diverse actors, including civil society organizations, industry associations, special privacy advocates and government officials. Such deployments must also involve control mechanisms that help ensure transparency and accountability. Based on a comparative study of biometric immigration control system deployment in four countries (Australia, Mexico, New Zealand and Spain), two types of asymmetries standout: first, notable differences in the types of information collected, stored, processed, retrieved, updated, analyzed and exchanged; Second, the purposes for which biometric systems are currently used. In the latter case, wide divergence exists in areas for which these systems are employed, such as border control strategies and the use of travel documents, revealing that each nation chooses to use these systems at different points in the immigration process. These asymmetries pose both short and long -term challenges for international cooperation,