INTERNATIONAL: World Anti-Doping Agency (WADA) president Witold Banka said he wanted Russian authorities to change the country's doping culture and conduct a thorough investigation into teenage figure skater Kamila Valieva's entourage, with any culprits to be banned for life.

The 15-year-old prodigy was cleared on Monday to compete in her next event at the Beijing Olympics by the Court of Arbitration for Sport (CAS) after a failed drugs test last December, although CAS did not rule on the doping case itself.

"The doping of children is evil and unforgivable, and the doctors, coaches and other support personnel who are found to have provided performance-enhancing drugs to minors should be banned for life, and personally I also think that they should be in prison," Banka told Reuters on Monday.

The case is now in the hands of the Russian Anti-Doping Agency (RUSADA), which has to set up a hearing to decide on the fate of Valieva, a hot favourite for the women's singles in Beijing.

If WADA is not satisfied with RUSADA's report, it can appeal to CAS, which is the sport's highest court.

"We demand that RUSADA completes a strong investigation into the entourage. We will also look into that and make sure that a proper investigation is carried out," said Banka.

One of the reasons CAS gave for its ruling was that Valieva is a minor and barring her from further competing in Beijing after she helped the Russian Olympic Committee (ROC) win the team event last Monday, would have caused her "irreparable harm".

Valieva skated on her short programme Tuesday followed by a free skating routine on Thursday.

The IOC said earlier on Monday that no medal ceremony would take place if the teenager finishes in the top three because she is an athlete with a positive test on her record.

^{PHOTO: INTERVIEW WITH WORLD ANTI-DOPING AGENCY (WADA) PRESIDENT WITOLD BANKA / CAS OFFICE AT BEIJING CONTINENTAL GRAND HOTEL / RUSSIA'S DRUG TESTING LABORATORY}