Ronald Dworkin and his interpretation of natural law and positivism.

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To properly assess the statement in question, we must first examine the elements of both natural law and legal positivism.

Thomas Aquinas in Summa Theologica explains his view of natural law as being universal in nature as it emanates from rationale held by us as human beings; therefore we all share this reasoning.

Aquinas defines positive law as being determined by natural law for the common good. It is binding on humans as a collective conscience as it is inherently just. The concept of law being just is crucial to positivism. If a law is unjust it is not regarded as law. A law cannot be produced in name only according to positivists.

Ronald Dworkin, a contemporary American legal philosopher is most notorious for his theory on natural law and legal positivism. This theory is often described as ‘the third way’ and is Dworkin’s response to HLA Hart’s theory on legal positivism.         

For the basis of properly analysing Dworkin’s position relating to the law, we must examine Hart’s analysis of the concept of law. In his book, The Concept of Law, Hart argues for a set of primary rules of obligation and secondary rules. The essential secondary rule is Hart’s rule of recognition, which sets out the criteria for identifying laws within specific legal systems. Hart describes this rule ‘...to say that a given rule is valid is to recognize it as passing all the tests provided by the rule of recognition and so as a rule of the system. We can indeed simply say that the statement that a particular rule is valid means that it satisfies all the criteria provided by the rule of recognition.’ This rule of recognition is a device by which to identify the primary rules of obligation.

Ronald Dworkin, Hart’s most famous critic argues for the theory of there always being one right answer, one right decision to be made within the law, even if the answer is not apparent.

Whereas Hart argues for a set of legal ‘rules’, Dworkin holds that legal principles are more relevant in the development of the law. Dworkin describes these principles as ‘a standard to be observed, not because it will advance or secure an economic, political or social situation deemed desirable, but because it is a requirement of justice or fairness or some other dimension of morality’.  He argues that the difference between rules and principles lies with the fact that rules by their very nature are rigid and often inflexible. The notion of principles lends itself to being open to variation depending on the facts of the case. Dworkin argues that the point at which these principles become established, for example with judicial precedent, is when judges are faced with so called ‘hard cases’. However if we take the example of precedent, Dworkin’s principles become rules as they are later used as a means to justify judicial decisions in said ‘hard cases’. This presents a problem in Dworkin's theory. Dworkin argues that Hart’s rules approach doesn’t allow for the presence of principles within the law. Dworkin also argues that principles do in fact guide the decisions that judges make and also justify those decisions. However Dworkin states there is no way of explaining every such principle as many would not become apparent until a judge happens upon them in a hard case. Dworkin also fails to explain the legal nature of these principles, although he does state they are binding upon the decision maker. Therefore the problem lies not in establishing that such principles are at operation within our legal system, but rather in not being able to establish their legal status and furthermore how they are proposed to be applied when judges are making decisions or interpreting decisions.

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H.L.A Hart later broadened his theory of ‘rules’ in order to allow for judges to apply ‘legal standards’ within their decision making. Hart does acknowledge that these standards may inhibit a judge’s ability to make decisions in hard cases but maintains that there must be numerous decisions that arise out of these cases that can be justified by these standards. Dworkin rebuts this position due to its rigidity and vagueness when allowing for judicial reasoning on hard cases.

In his book, Justice in Robes, Dworkin poses the question ‘how should a judge’s moral convictions bear on his judgements about ...

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