Oaths, Witnesses and Modern Law
In the common law world the oath has long provided one way of ensuring that trial witnesses tell the truth. The moral power of the oath supplements the judicial power of perjury laws. But unlike laws forbidding perjury, the oath cannot be used automatically. Through ignorance, belief or conscience a person may be incapable of meaningfully swearing an oath. Over the years there have been many legislative enactments and judicial pronouncements which sought to clarify conditions for the use of the oath and establish alternatives to it. With increasing secularization of society, the traditional ground rules have required modification. Because there has been little serious, theoretical discussion of the nature of the oath, these modifications have often exhibited inadequate understanding of the moral dimensions of the oath. As a result, judicial discussion has reached an impasse. In January, 1988 Bill C-15 became law. It contained yet another attempt to satisfactorily harness the power of the oath to the needs of the judicial system. The interpretation of this new legislation will offer excellent opportunities to eliminate some of the confusion surrounding the oath in Canadian law. This paper will analyze the nature of the oath with special attention to its obligation-generating capacity. The analysis developed here may help provide the understanding necessary for sensible judicial interpretation and reform.