Polanski, 76, was arrested Sept. 26 in Zurich on an outstanding U.S. warrant in connection with a 1977 child-sex case.
The famous movie director, who lives in France, has not traveled to the United States since he pleaded guilty in a Los Angeles court to having unlawful sex with a minor and then fled the country before he could be sentenced. He was accused of drugging and raping Samantha Geimer when she was 13.
Polanski's lawyers have alleged misconduct on the part of the Los Angeles criminal justice system at the time of the plea deal.
Folco Galli, a spokesman for the Federal Office of Justice in Bern, Switzerland, told the Los Angeles Times Tuesday his office has rejected Polanski's request it reconsider the warrant that led to his arrest.
"We are still persuaded that there is still a danger that he will escape, and that liberation on bail could not guarantee his presence through the extradition proceedings," Galli told the newspaper.
However, Polanski's Paris-based attorney, Herve Temime, said in a statement Polanski would "not leave the Swiss territory during the whole extradition procedure, and (would) respect all the obligations that may be imposed upon him in order to guarantee that commitment."