Casey Anthony is being held on $500,000 bail on charges of child neglect, making false statements and obstructing an investigation. Police say the 22-year-old mother lied to them and didn't report daughter Caylee missing for more than a month.

Casey Anthony hasn't been charged with her daughter's disappearance, but prosecutors call her a person of interest in what is beginning to look like a homicide investigation.

A lower court set the high bond. The 5th District Court of Appeal on Wednesday denied Anthony's request to order it lowered to $10,000. A spokeswoman says attorney Jose Baez plans to appeal to the Florida Supreme Court.