Following accusations of large-scale doping within the sport, the International Association of Athletics Federations (IAAF) has claimed the alleged evidence has been obtained illegally.
A documentary, titled ‘Doping ” Top Secret: The Shadowy World of Athletics’, was released by German broadcaster ARD on Saturday.
Both ARD and The Sunday Times newspaper claim to have obtained an IAAF database containing 12,000 blood tests of around 5,000 athletes from 2001 to 2012.
The Times claims the findings reveal “extraordinary extent of cheating” by elite athletes.
The World Anti-Doping Agency described itself as “very disturbed” by the allegations, while the IAAF issued a response on Sunday that challenged the legality of the process by which the information was obtained.
“The IAAF is aware of serious allegations made against the integrity and competence of its anti-doping programme,” a statement read.
“They are largely based on analysis of an IAAF database of private and confidential medical data which has been obtained without consent.
“The IAAF is now preparing a detailed response to both media outlets and will reserve the right to take any follow up action necessary to protect the rights of the IAAF and its athletes.”