In this paper, the authors present a new approach that is to increase the performance of a biometric system. The iris is a highly accurate biometric identifier. However widespread adoption is hindered by the difficulty of capturing high-quality iris images with minimal user cooperation. This paper also describes to increase performance of iris system designed for stand-off cooperative access control. The iris system captures the image of who stand in front of and face the system after 3.2 seconds on average. The iris camera lens has its focal distance automatically adjusted based on the subject distance to identify an individual.