A few weeks after Campbell-Brown's test, Jamaican sprinting stars Asafa Powell and Sherone Simpson also tested positive for a banned substance and didn't attend the world championships in Moscow. The incidents shocked many in Jamaica, where global domination in sprinting is a huge source of national pride.
Powell, the former world 100 meter record holder, and Simpson, an Olympic 400-relay silver medalist, are scheduled to appear before a Jamaican disciplinary panel in January.
For Campbell-Brown, the sanction for a lesser offense could be a reduced penalty a suspension of a few months to a year or a public warning rather than a standard two-year ban.
In 2009, Jamaican sprinter Yohan Blake and three other islanders received reduced suspensions of three months after testing positive for a banned stimulant.
Under the World Anti-Doping Code, some diuretics are classified as a "specified substance," a designation for drugs that might have been consumed without intent to enhance performance. Athletes can receive a reduced sanction if they can prove how a substance was ingested.
The 31-year-old Campbell-Brown could not immediately be reached for comment. Phone calls and an email to her manager, Claude Bryan, went unanswered.
In June, Bryan issued a statement saying the accusation came as a shock to Campbell-Brown and she was determined to clear her name. He said she was apologizing to her fans, sponsors and others for any embarrassment or hurt the "devastating news has caused." Since then, she has remained mum.
Campbell-Brown has won seven Olympic medals in all, including the 2004 and 2008 Olympic gold medals in the 200 meters. In addition to her individual Olympic titles, she also won gold in the 400 relay at the 2004 Athens Games. In London, she won bronze in the 100 meters and silver as part of the 400 relay team.
The disciplinary hearing into her case was held under tight security, with the JAAA declining to disclose where it was being held. The sprinter was represented by P.J. Patterson, a former prime minister who led Jamaica from 1992 to 2006 and whose People's National Party is currently in power.
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David McFadden on Twitter: http://twitter.com/dmcfadd