"I am the chairman of the US anti-doping agency. Going back to the 70s and 80s I was one of the athletes who believed in true sports. I never took medical supplements but believed in diet and exercising. I could always say I represented the clean athletes," said the two-time Olympic 400m hurdles champion.
Moses, who was unbeaten in the low hurdles for 122 consecutive races, including 107 finals, was addressing the media ahead of Sunday's Standard Chartered Mumbai Marathon for which he's the Event Ambassador.
The 60-year-old Ohio-born former athlete, who won the gold medal in 400m hurdles in 1976 as a 20-year-old with a world record time and then regained it eight years later in Los Angeles, also hit out at the athletics governing body without naming it, for the sport's current plight.
"I think the federation has let the athletes down. Athletes deserve a federation to be accountable. Federation owes a lot to the athletes. I think it's a travesty what's happened," he said in a hard-hitting statement after appearing to be reluctant to talk on the subject initially.