The World Anti-Doping Agency says it won't take part in an independent inquiry into the International Cycling Union's handling of doping because of serious concerns it has about the investigation.
The WADA president John Fahey made the announcement just as US Anti-Doping Agency's chief executive Travis Tygart said the UCI's refusal to allow limited amnesty for witnesses who testify before the commission calls into question the union's commitment to a thorough investigation.
Fahey believes the scope of the inquiry is too focused on sanctioned former cyclist Lance Armstrong.
He says as Armstrong's case is closed and completed with no appeal the commission will not fully address doping which is such a widespread and ingrained problem.
He's also concerned the time allotted to conclude the investigation, which must report back by June, is insufficient.
Fahey says because the commission is also not offering immunity there's no incentive for witnesses to come forward.
He says that calls into question the UCI's commitment to a full and thorough investigation and creates concern the UCI has blindfolded and handcuffed the independent commission to ensure a predetermined outcome he says.