'Inquisition' was the new form of criminal procedure that was developed by the lawyer-pope Innocent III and given definitive form at the Fourth Lateran Council of 1215. It has since developed a notoriety which has obscured the reality of the procedure, and it is this that Professor Kelly is first concerned with here. In contrast to the old Roman system of relying on a volunteer accuser-prosecutor, who would be punished in case of acquittal, the inquisitorial...