LOS ANGELES -- Roman Polanski's lawyers have issued a statement calling for an investigation into the U.S. refusal to provide requested evidence to Swiss authorities in his 33-year-old sex case.

The one-page statement released Tuesday in Los Angeles made no personal reference to Polanski or his reaction to Monday's ruling freeing him from Swiss custody.

It was the first defense comment since the Swiss refused to extradite Polanski to the U.S.


Sign up for KTLA 5 Breaking News Email Alerts

The attorneys asked for the appointment of a commission by the California governor or attorney general to look into possible official misconduct in the 1977 case

They said the Los Angeles County district attorney purposely withheld the material sought because it would have undermined the extradition request. They refused further comment.

However, the Los Angeles County District Attorney's office is denying the allegations implied by Polanski's legal team.

L.A. District Attorney spokeswoman Sandi Gibbons tells KTLA, "The L.A. District Attorney's Office turned over all information and evidence requested by the Swiss authorities."