Comerica Park, an open-air ballpark located that is home of the Detroit Tigers of Major League Baseball, has launched a biometric entry system for fans.Starting today, fans will have the option of enrolling in a new biometric service developed by CLEAR – a New York-based company centered on biometric identification systems – which will allow them to skip the security lines.According to Comerica Park officials, enrollment in the service takes minutes and fans can begin using the service immediately after they are enrolled.Currently the service is currently only available at Gate A of Comerica Park, located on Witherell Street.”Detroit is an amazing sports town with a loyal fan base and we couldn't be more excited to partner with the Tigers,” said CLEAR CEO Caryn Seidman-Becker in a recent Tigers press release.CLEAR is also available at more than 30 other airports and sports venues across the country, including Detroit's Metro Airport.CLEAR is free to use at all stadiums including Comerica Park. It's $15/month, billed annually, to upgrade for use in airports as well.Financial terms of the agreement between CLEAR and Comerica Park were not disclosed, but the deal runs through the 2018 season, said Ed O'Brien, head of sports for CLEAR.