World Anti-Doping Agency chief Dick Pound has criticised American sprinter Marion Jones for demanding a public hearing to clear her name.
Jones is one of the athletes under scrutiny of USADA
Jones is upset with reports that claim she may have violated doping rules.
But Pound says she should not try to pressure the United States Anti-Doping Agency (USADA) into a quick conclusion.
"What USADA is doing is entirely proper, entirely in conformity with the rules in which it operates," said Pound. "It's not a witch-hunt at all."
Jones, a triple Olympic champion, insists she has never used performance-enhancing drugs.
But she has found herself at the centre of the doping storm surrounding Balco, the firm under a federal doping probe for illegally distributing steroids to athletes.
On Wednesday, Jones said that she would co-operate with USADA only if their
investigations are conducted in public.
"I am more than happy to answer every question but I am not going to engage
in the United States Anti-Doping Agency's secret kangaroo court," she said.
But Pound was unimpressed with her plea, saying: "My impression was that it was kind of a grandstand performance."
Attorney Joe Burton also claims Jones has taken and passed a lie detector test in an effort to clear her name.
He said the polygraph examination asked two questions: "Did you ever personally use performance-enhancing drugs?" and "Are you now lying about any personal use of performance-enhancing drugs?"
Burton said Jones answered "no" to both questions and passed the test.
"They have more than ample reason to close this matter and exonerate Marion Jones," said Burton. "If there is any fairness in the process, this matter should be over."