Law, Autonomy, and Reason

Abstract

Joseph Raz’s recent discussion of law’s autonomy and public practical reasons, in response to an essay by Gerald Postema, provides further illumination of Raz’s own view of the nature of law; it forcefully challenges Postema’s purported identification of the defining task of law; and it clarifies the relationships between a number of strands, or theses, that enter the debate over an appropriate theoretical model for law. It is not necessary to locate this discussion within the more general setting of the conflict between Natural Law and Positivism—nor is it in any case clear that that sharp contrast is sustainable. Within the traditionally accentuated divide between Natural Law and Positivism, to talk of the autonomy of law would be taken as a simple positivist proclamation against the subjugation of law to moral standards. What emerges from Raz’s article is a subtle interplay between different characteristics and expressions of the law, which is capable of entertaining moral influence and social objective whilst retaining clear theses that seek to capture the distinctively legal nature of the phenomenon under investigation.In Raz’s recent article, the distinctive nature of law is still linked to an idea of autonomy expounded in terms of the sources thesis and the pre-emption thesis. The former identifies legal materials with legal sources free from the constraints of a further evaluative check, and the latter provides legal reasons to act for those subject to the law free from the consideration of further extra-legal factors. The greater sophistication of this concept of autonomy rests on the allowance Raz gives to the impact of moral factors and issues of social cooperation on legal reasoning, and his acknowledgment that legal reasoning itself is not autonomous.