Chambers claimed that his new coach had introduced him to Conte as a way of providing him with specialised 'nutritional supplements' - which he took by putting a few drops of liquid under his tongue. Conte had helped develop a type of anabolic steroid called THG, or tetrahydrogestrinone, at BALCO. After Chambers discovered that he had tested positive for drugs he sent his lawyer to meet Conte and make inquires about the supplement he had been ingesting. Conte assured him that all the substances were IAAF compliant.