A sample for an out-of-competition drugs test that Chambers had provided in Germany on 1 August 2003 was re-examined in October and subsequently tested positive for banned substances. The United States Anti-Doping Agency (USADA) were investigating the Bay Area Laboratory Co-operative (BALCO); the workplace of both Chambers' coach Remi Korchemny, and nutritionist Victor Conte. Both men faced charges of distributing illegal drugs to athletes in the United States. The BALCO Scandal uncovered drug use in a wide range of sportsmen and women, including sprinters Marion Jones and Tim Montgomery.