The success of any system of law depends, in the last resort, on the personnel who administer it. However perfect the procedure of a system may be in theory, it will not work well in practice if the officials who operate it are inefficient or lack proper powers: whereas, with efficient personnel having adequate powers, imperfections of procedure may be of little consequence. The fundamental principles of criminal procedure are the same in England and the United States; yet in the one country there is satisfaction, amounting, perhaps, to complacency, with the operation of the criminal law; while in the other there is almost universal dissatisfaction. This dissatisfaction has provoked a great deal of detailed research in America into the deficiencies of criminal justice, by both public commissions and private individuals, and, consequently, the publication of much frank and vigorous criticism. An examination of this criticism shows that, in the opinion of the American commentators, the factor of personnel is at the root of a great many of their troubles.
It is indeed the submission of this article that the important differences in the actual administration of the criminal law in England and America arise, in large measure, from the difference in status and character of the personnel who administer the law; and, in particular, from the differences in the distribution of powers among them. A comparison of some aspects of the powers, prestige, character and abilities of the judges, juries and counsel who, between them, are responsible for dispensing criminal justice in the higher courts in the two countries, will, it is believed, reveal that this is so.