Bracy-Williams was caught after a whistleblower tipped off anti-doping officers in the United States
Cheats are winning the battle against anti-doping authorities in elite sport, according to a top official.
David Howman, who chairs the Athletics Integrity Unit and served as director general of the World Anti-Doping Agency (Wada) for 13 years, says the anti-doping system has "stalled", allowing those who take banned substances to prosper.
"Let's be honest and pragmatic – the system has stalled," Howman said.
"Intentional dopers at elite level are evading detection. We are not effective enough nowadays in catching cheats.
