ORLANDO, Fla. -- The defense team representing Casey Anthony is urging a judge to throw out the murder charge she's facing, according to a motion filed on Tuesday.

Anthony was arrested last year shortly after a grand jury indicted her for premeditated murder. Her defense claims the indictment document is defective because it does not include any specific facts about how the crime was committed.

Without any facts to refute, Anthony cannot formulate a defense, her attorneys argue.

In a separate motion addressing Anthony's check fraud case, the defense claims prosecutors excessively added criminal charges violating her constitutional rights.

Anthony, 23, remains jailed on first-degree murder charges in the death of her daughter, Caylee, whose remains were found in December. Caylee was 2 years old when she was reported missing in July 2008.

Anthony has pleaded not guilty, claiming Caylee was kidnapped by a baby sitter.

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