what is needed to prove an adult mentally incompetent?
A person who is diagnosed as being mentally ill, senile, or suffering from some other debility that prevents them from managing his own affairs may be declared mentally incompetent by a court of law. When a person is judged to be incompetent, a guardian is appointed to handle the person's property and personal affairs. The legal procedure for declaring a person incompetent consists of three steps: (1) a motion for a competency hearing, (2) a psychiatric or psychological evaluation, and (3) a competency hearing.