Casey Anthony's parents are asking a judge to excuse them from a rule that could keep them out of the courtroom during their daughter's first-degree murder trial.

Prosecutors have the right to ask that witnesses for the defense are not in the courtroom during other people's testimony, and as witnesses for the defense, this could apply to George and Cindy Anthony.

As victims, however, the Florida constitution provides the Anthonys the right to attend the trial.

In a motion filed Monday, the Anthonys' lawyer said his clients' constitutional rights would be violated if they were excluded from crucial stages of the case.

Casey Anthony, 25, is charged with first-degree murder in the death of her daughter, Caylee, who was 2 years old when she was reported missing in July 2008. Her remains were found in a wooded area near the Anthony family's east Orange County home in December 2008.