Lawyers for director Roman Polanski are reportedly seeking to have a case in which the filmmaker was charged with having unlawful sex with a 13-year-old dismissed, according to Reuters.

Celebrity lawyer Alan Dershowitz has reportedly filed a motion in the Los Angeles Superior Court on Monday requesting permission to represent Roman Polanski and in the same filming, the attorney reportedly requested a hearing to close the case, according to the New York Times.

Polanski’s attorneys are reportedly arguing that prosecutors and judges carried out “serious misconduct” in seeking Polanski’s return to the Unites States after the “Chinatown” director fled the country to his native France, reportedly fearing the judge would impose more prison time than the 42 days he had spent for a psychiatric evaluation.

The latest motion reportedly covers an October arrest attempt in Warsaw. Polish prosecutors had reportedly interviewed Polanski in connection with an arrest warrant made in the U.S. then let him go as there were no grounds to hold him.

“I think that Polish citizens, especially in cases of crimes whose statute of limitations have run out, should not be subject to extradition,” Prime Minister Ewa Kopacz said when asked about the Polanski case, according to Fox News.

Roman Polanski was reportedly charged in 1977 with raping a 13-year-old girl in Hollywood after giving her champagne and drugs. He reportedly pleaded guilty to having unlawful sex with a minor.

Polanski’s victim, Samantha Geimer, released her memoir titled “The Girl: A Life in the Shadow of Roman Polanski” in September 2013, telling her side of the story, according to the LA Times. Geimer reportedly publicly forgave Polanski in 1997 and had filed a formal request that Los Angeles prosecutors drop the charges against him, according to the NY Daily News.

“I have survived, indeed prevailed, against whatever harm Mr. Polanski may have caused me as a child,” Geimer stated at the time.

She added, “I got over it a long time ago.”