"When it comes to sanctioning the entourage, the power of sports organizations is extremely limited. What sports organizations can do and have tried to do, not always successfully, has proven to be very limited and did not have the necessary deterrent effect," Bach said.

Bach said sports organizations may be able to ban a doctor from sports meet but can not prevent the doctor from "continuing with his nefarious business without any consequences."

That's why they encourage "the governments to look for effective ways within their respective national legal systems to severely punish people who are part of the entourage," he added.

Last week, operational guidelines aimed at involving more government efforts in the doping fight was rejected at the seventh session of the Conference of Parties to the International Convention against Doping in Sport, which Bach said it was a disappointment.

"It was disappointing to hear that the proposed 'Guidelines and framework on consequences (for non-compliance with) the UNESCO Convention on Anti-Doping in Sport' was rejected last week.

"This is a missed opportunity for government authorities to fill this void and to step up to their responsibility to sanction everybody who is implicated in a doping case in a robust and deterrent way - and not only the athletes. We urge the UNESCO member states to re-consider this question as soon as possible," he said.

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