Anoka County jail in Minnesota has deployed an iris-scanning identification system for inmates.The system will be used to track the movements of 11,000 or so inmates booked into the jail each year.”It's a quicker and extremely accurate version of a fingerprint check,” Anoka County jail Cmdr. Dave Pacholl told Star Tribune.The newspaper reported that The Anoka County Sheriff's Office is one of only about 100 U.S. police departments, sheriffs and prison systems using the technology patented by BI2 Technologies, a private company based in Plymouth, Mass., that specializes in biometric intelligence and identification technology.Other users include the Maine Department of Corrections and the jail systems in Washington, D.C., and Atlanta, Taylor said.They are the only company endorsed by the National Sheriffs' Association. They have very strong support from the national law enforcement community,” said Taylor, whose company partners with BI2 Technologies.The technology was added to the Anoka County sheriff's jail-management software during an upgrade. Adding two eye-scanning stations cost $23,000.The jail is now using both iris and fingerprint matching. Inmates have their eyes scanned when they're booked into the jail. They also are scanned to verify their identities when moved to and from court and again when they're released.”We don't want to release the wrong person,” he said. “It happens more than any jail would like to admit.”