Drug Free Sport New Zealand chief executive Graeme Steel has joined the chorus demanding Russian track and field athletes be banned from the Rio Olympics.
"They shouldn't be there," Steel told Newstalk ZB from an anti-doping conference in London. "The leopard hasn't changed its spots. The evidence that we [anti-doping bosses] have seen from the most recent German video is pretty compelling. It shows supposedly-banned Russian athletes are still operating and are, in fact, on coaches' official lists. High-profile coaches are still prepared to offer testosterone over the phone to people posing as athletes."
Despite doping still appearing to be widespread in the international sporting community, Steel believes anti-doping agencies are winning the overall fight.
"It depends how you define winning and losing. Have we caught every cheat? No, but from my perspective we've got to work towards a system where New Zealand athletes have a shot of winning clean on the world stage.
"We have numerous world champions. I can't guarantee they are all clean, but I can tell you not all are doping. That shows you can win on the world stage without doping, whereas the likes of Val [shot putter Valerie Adams] couldn't have won 20 years ago. She wouldn't have had a prayer, or been within a metre of what they were throwing. You can't dope in the gross fashion that used to occur.