For example, at the last summer Olympics in London in 2012, religious symbols were banned from lapel badges worn by chaplains at the Games, but female competitors from Saudi Arabia were forced to wear veils in order to compete.
In 2012 the International Olympic Committee (IOC) ruled against the International Judo Federation, which had ruled that Saudi competitors would not be allowed to compete wearing a hijab. However, the IOC later relented, and allowed the Saudis to wear hijabs.
Organizations such as the Ligue du Droit International des Femmes (League for the International Rights of Women) have unsuccessfully campaigned against the hijab's appearance at the Olympics.
"The IOC is under the influence of politics, and not the anti-doping system. It should clearly follow the rules of sport which are stated in its code of ethics. That is, treating all sportspeople equally, whether this is in regard to doping or another area," Lebar said.
Lebar said that wearing hijabs is dangerous, and prevents competitors from performing to the best of their ability.
"It is very well known that wearing hijabs is dangerous for sportswomen, for example in a discipline like judo there is a risk of suffocation."
"I think the IOC is very, very far from that, taking into account that it didn't show bravery over the doping issue. Why is it going to show spirit over the hijab issue?"
"A systematic punishment is necessary, but money is an issue here and they won't punish Qatar or Saudi Arabia, which provide them with a lot of money. That's the problem," she said.