Dame Valerie Adams says she isn't surprised about the latest revelation regarding her disgraced shot put rival Nadzeya Ostapchuk.
The Belarussian was recently stripped of her Bronze medal from the Beijing Olympics after retrospective drug testing revealed another positive test.
It's the third time Ostaphuk's failed a drugs test. She was also stripped of her World Championship title in 2005 and Olympic title in 2012.
Adams was elevated to gold at the London Olympics and is now the only medallist left from both the Beijing and London games - the rest have all been disqualified for doping.
"I guess that just goes to show how much drugs have a big effect on sport and how much it's still involved in sport," Adams told Newshub.
We have to do our bit as athletes now to continue to try to teach our youngsters that it's not ok, and they don't have to do this. It's not the way to do it."
Ostapchuk's four year ban from the London games is now over, and it's not yet known whether she'll face further punishment for this latest positive test.
Once again, Adams has called for the Belarussian to be banned for life.
"In my opinion - once a cheater, always a cheater. They should be banned for life and never come back."
Adams also expressed her disappointment and frustration at the ongoing drugs problem.
"At the end of the day, medals are one thing, but I guess as athletes doing athletics - we don't get paid a lot of money.
"So that's our prize money gone, she's taken all the benefits from there .. endorsements or whatever that could have happened back in those days."