It may be that the requirement of a preliminary approval by the Grand Jury, of all accusations of a serious nature, justified the boast that a man was presumed to be innocent until he was 'found' guilty; but that presumption certainly ceased to have practical application, so soon as the Grand Jury had returned a 'true bill'.
Chapter XVIII, Reform In The Criminal Law, p. 332 - A Short History Of The English Law (First Edition) (1912)