The Court Appointed Special Advocate speaks up in court for the best interests of a child in the foster care system. A CASA talks to people that are involved in the case; the parents, the attorneys, the child's teachers, the psychologists, and the Child Protective Service workers. They try to get the whole picture of what is going on in the case, and they write reports that go to the court to tell the judge about the child. As volunteers, the CASA is the only person who has an unbiased opinion, based on facts of the case, of what is in the child's best interest. The CASA is critical to helping a child find a safe, loving, permanent home.