Valerie Adams: Olympic champion calls for life bans for drug cheats

World and Olympic shot put champion Valerie Adams says that athletes who test positive for performance-enhancing drugs should be banned for life, even if it is their first offence.

"Once a cheater always a cheater - you should be banned for life," said the 30-year-old New Zealander.
"Kick them all out, none of this back after two years stuff."
A serious first doping violation leads to a two-year ban, but the punishment will increase to four years in 2015.
However, recent research on mice suggests that athletes continue to benefit from having taken steroids long after their suspensions have been served.
Adams was speaking in Monaco as one of the three nominees for the International Association of Athletics Federations (IAAF) women's athlete of the year award.