On sound and unsound mind: the role of suicide in tort and insurance litigation.

Suicide continues to be a recognized as a crime by common law in a few states. In those jurisdictions, the beneficiary of a claim must prove that the individual who attempted or committed suicide was of unsound mind, to avoid having the patient's act declared illegal, which would bar recovery of the claim. In malpractice and insurance cases, expert testimony is required regarding the mental state of the individual who attempted or committed suicide. Psychiatric testimony varies widely, depending on the legal definition of "unsound mind" and the highly subjective interpretation of legal definitions. Some experts equate suicide with an unsound mind, whereas others apply M'Naghten criteria. Some psychiatrists who disagree with criminalizing suicide refuse to participate in these proceedings. In suicide malpractice cases, the appropriate function of the expert witness is to provide testimony about the standard of care. When experts attempt to testify about "sound or unsound" mind, they must be mindful of the imperfect fit between psychiatry and the law.