Biometric recognition - automatic recognition of individuals based on their behavioral and biological characteristics - is promoted as a way to help identify terrorists, providing better control of access to physical facilities and financial accounts, and improve the efficiency of access to services and their utilization. Now, like biometric technology seems ready for wider use, raising concerns about national security and tracking individuals as they crossed the border has led to a passport, visa, and cross-border records can be linked to biometric data. Biometric Recognition: Challenges and Opportunities to discuss issues surrounding the wider application of this technology, making the two main things: first, the introduction of biometric systems are incredibly complex, and needs to be addressed like that. This book describes these themes in detail to provide policy makers, developers, and researchers a comprehensive assessment of biometric recognition examine current capabilities, future possibilities, and the role of government in technology and system development.