at the Atlanta Olympic Games in 1996. Hormone testing In August 2009, South African athlete Caster Semenya was subjected to mandatory sex verification testing at the request of the IAAF. In the wake of the Semenya case, testosterone testing was introduced to identify cases where testosterone levels were elevated above a particular level, termed hyperandrogenism, with national Olympics committees tasked by the IOC to "actively investigate any perceived deviation in sex characteristics". In football, FIFA's current gender verification policy dates to 30 May 2011. In June 2012, in advance of the 2012 Summer Olympics, the IOC released IOC Regulations on Female Hyperandrogenism to address these cases. It includes the statement, "Nothing in these Regulations is intended to make any determination of sex. Instead, these Regulations are designed to identify circumstances in which a particular athlete will not be eligible (by reason of hormonal characteristics) to participate in 2012 Olympic Games (OG) Competitions in the female category. In the event that the athlete has been declared ineligible to compete in the female category, the athlete may be eligible to compete as a male athlete, if the athlete qualifies for the male event of the sport." Policies on hyperandrogenism were suspended following the case of Dutee Chand v. Athletics Federation of India (AFI) & The International Association of Athletics Federations, in the Court of Arbitration for Sport, decided in July 2015. Chand had been dropped from the 2014 Commonwealth Games at the last minute after the Athletic Federation of India stated that hyperandrogenism made her ineligible to compete as a female athlete. The ruling found that there was insufficient evidence that testosterone increased female athletic performance. In doing so the court immediately suspended the practice of hyperandrogenism regulation used by the IAAF and declared it void unless the organization could present better evidence by July 2017. A study published in 2017 by Stéphane Bermon and Pierre-Yves Garnier analyzed 2,127 performances and hormone concentrations in male and female elite track and field athletes during the 2011 and 2013 Track and Field World Championships. When compared with women with lower levels of the hormone free testosterone (fT), women with the highest fT levels performed significantly better in the 400 m, 400 m hurdles, 800 m, hammer throw, and pole vault with margins of 2.73%, 2.78%, 1.78%, 4.53%, and 2.94%, respectively. Such a pattern was not found in any of the male athletic events. The