This Committee was constituted in July, 1922, by the Lord Chancellor, The Earl of Birkenhead, “to consider and report upon what changes, if any, are desirable in the existing law, practice and procedure relating to criminal trials in which the plea of insanity as a defence is raised, and whether any and, if so, what changes should be made in the existing law and practice in respect of cases falling within the provisions of Section 2, sub-section (4) of the Criminal Lunatics Act, 1884.”