Former Team Sky doctor Richard Freeman and ex-British Cycling employee Simon Cope have been summoned to appear before a House of Commons Select Committee as MPs try and establish exactly what was in a Jiffy bag containing medicine to be used by Sir Bradley Wiggins that was delivered to Team Sky at the 2011 Critérium du Dauphiné.
Appearing before the Culture, Media and Sport Select Committee last month, Team Sky principal Sir Dave Brailsford said the package contained the decongestant Fluimucil, which is not on the World Anti-Doping Agency's banned list.
However, the committee's chair, Damian Collins, has expressed strong concerns about the lack of a paper traile concerning the contents of the package.
In a statement today, Collins confirmed that Nicole Sapstead, chief executive of UK Anti-Doping (UKAD), which is conducting its own probe into the episode, will appear before the committee on 22 February to give evidence.
What is not in doubt is that Cope, who was manager of the Great Britain elite women's road team at the time, took the package from the UK to France via Geneva, and expense records published by the committee show that he made the return trip on the same day, with the costs of the trip charged to Team Sky.
The contents of the package are said to have been handed to Freeman, who reportedly administered the medicine to Wiggins - who had just secured the overall win at the race - in the Team Sky bus.
UKAD confirmed to the committee that it had no objection to Cope and Dr Freeman being asked to testify, and they have been invited to give evidence on the same day as Sapstead.
Collins said: "There is a considerable public interest in UKAD's investigation and it is also important to our inquiry into doping in sport to understand what they have been able to determine from their investigation.
"The committee has been told by both British Cycling and Team Sky that they have supplied all the information they have relating to this investigation to UKAD. However, we need to know if they have received documentary evidence which confirms what was in the package that was delivered by Simon Cope to Team Sky.
"Without this evidence, I am concerned about how it is possible for the anti-doping rules to be policed in an appropriate manner, if it is not possible to review the records of medicines prescribed to riders by the team doctors.
"I hope that on 22 February, if not before, we will receive clear evidence on this important matter," he added.
Simon joined road.cc as news editor in 2009 and is now the site’s community editor, acting as a link between the team producing the content and our readers. A law and languages graduate, published translator and former retail analyst, he has reported on issues as diverse as cycling-related court cases, anti-doping investigations, the latest developments in the bike industry and the sport’s biggest races. Now back in London full-time after 15 years living in Oxford and Cambridge, he loves cycling along the Thames but misses having his former riding buddy, Elodie the miniature schnauzer, in the basket in front of him.