The World Anti-Doping Agency says that cycling's proposal to offer amnesty to riders and officials who confess to drug offences is taking sport into "uncharted territory".
The WADA director general David Howman stated that such pardons are not included in WADA's rules. But he will wait to see more details of the suggestion put forward by the UCI president, Pat McQuaid, and has "no qualms" about looking into the idea.
WADA and the UCI are waiting to receive the evidence that led the US Anti-Doping Agency to strip Lance Armstrong of his Tour de France titles.
In the Tour of Britain, Mark Cavendish surrendered the overall lead yesterday as the Netherlands' Marc de Maar won the fifth stage. Australia's Leigh Howard retook the overall lead after coming in fifth.