This document provides an overview of iris recognition as a biometric authentication method. It discusses how iris recognition works, including iris scanning, iris code generation, and verification. It then describes how iris recognition could be used for the voting process, including a block diagram and flowchart of the process. The document notes advantages of iris recognition such as accuracy and difficulty to imitate, and disadvantages such as need for specialized equipment and inability to retrieve iris from crime scenes like fingerprints. It provides examples of iris recognition applications and concludes by discussing its advantages over fingerprint scanning for identifying refugees.