Even 65-year-olds can be caught for drugs
Monaco's Paul Cerutti was 65 when he was disqualified for using drugs during the trap shooting event in 1976.
Ben Johnson was banned for taking drugs in 1988
He was found to have taken amphetamines and is the oldest Olympic competitor to have been penalised this way.
The stimulants had done him little good anyway as he had finished 43rd in a field of 44.
But he joined the list of drugs cheats who have marred the modern Olympics, most famously Canadian sprinter Ben Johnson in 1988.
Back in the 1904 Games it was known that competitors in the marathon were given doses of strychnine during the race.
But, under the regulations at the time, it was not illegal.
The first Olympic drugs scandal occurred in the 100km race in 1960.
Knut Jensen was one of two Danish competitors who had collapsed during the event and later died from what was first thought to be sunstroke.
However it transpired that both had overdosed on a blood-circulation stimulant.
But the biggest drugs scandal of Olympic history was Johnson in Seoul.
After winning the 100m final in 9.79 seconds, Johnson was sensationally disqualified after his urine sample was found to contain the metabolites of banned anabolic steroid.
After an exhaustive investigation, he was asked bythe Dublin Commission on 12 June, 1989. whether he had a message for young athletes given his experience.
"I want to tell them to be honest and don't take drugs," he said.
"It happened to me. I've been there. I know what it's like to cheat."