John Marshall Harlan II,
Lynch v. Overholser — Opinion of the Court
“ But the fact that the accused has pleaded guilty or that, overcoming some defense other than insanity, the Government has established that he committed a criminal act constitutes only strong evidence that his continued liberty could imperil 'the preservation of public peace.' It no more rationally justifies his indeterminate commitment to a mental institution on a bare reasonable doubt as to past sanity than would any other cogent proof of possible jeopardy to 'the rights of persons and of property' in any civil commitment. ”
