 In 2002, Don Catlin, the founder and then-director of the UCLA Olympic Analytical Lab, identified norboletone for the first time in an athlete's urine sample.In the same year, U.S. bicycle racer Tammy Thomas was caught using it and was banned from her sport.The following year, Catlin identified and developed a test for tetrahydrogestrinone (THG), the second reported designer anabolic sample—a key development in the BALCO Affair.