New tests promise toughest Olympics for cheats

Prof David Cowan strongly indicated that a new test to catch blood dopers could be deployed for the first time.

Speaking at the British Science Festival in Bradford, Professor Cowan confirmed there would also be a new test for human growth hormone.

He said a new lab would aim to carry out about 6,000 tests during the games, Kazinform refers to BBC News.

While scientists have developed tests for almost all forms of doping in sport, the one that has caused them the most trouble has been the practice of athletes storing and transfusing their own blood.

Known as autologous blood doping, it increases the number of red blood cells and gives a substantial boost to an athlete's endurance by allowing them to carry more oxygen.

Several high profile Olympic competitors have been accused of the practice over the past 30 years, while scientists have failed to develop an effective test.

But according to Professor Cowan, who is based at King's College London, that might be about to change.

Details at http://www.bbc.co.uk/news/science-environment-14890564