Six Flags St. Louis is the latest venue in the amusement park chain to deploy a biometrics-based admission system, in which season pass holders must provide a mathematical model of their fingerprint to access the park. The model will be attached to a bar code on a card that will be scanned along with pass holders' fingers to gain entrance. Other amusement parks such as Disney World and Universal Studios have long used biometrics technology, and Six Flags St. Louis debuted its own system when the park reopened following winter break. Other parks advocate biometrics as a fraud-prevention measure, while Six Flags St. Louis' Elizabeth Gotway says the new admission system's efficiency is its chief selling point. She notes patrons can enter the park in less than nine seconds, and no longer have to have their photo taken thanks to the biometrics system. Gotway also stresses the computerized fingerprint measurements could not be used to duplicate an actual person's fingerprint, and the measurements will be deleted from the park's system with the pass' expiration. “This is no different from when they had a season pass with a photo on it,” she says.