By reference to case law examples explain the concepts of ratio decedendi and obiter dicta to the doctrine of judicial precedent.

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By reference to case law examples explain the concepts of “ratio decedendi” and “obiter dicta” to the doctrine of judicial precedent.

In a judge’s decision there are several elements. There will always be material of facts found and indirect statements of the principle of law and finally the decision based on these two.

Ratio Decidendi is Latin for ‘reason for deciding’; it may be understood as the statement of the law applied in deciding the legal problem raised by the concrete facts of the case.

Judgements are made on a Stare Decisis basis, where cases are treated alike but if a judge considers that the facts of a case are sufficiently different from a previous case then he may refuse to follow that decision.

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The difficulty in the search for the ratio becomes acute when more than one judgment is promulgated. An example is the case of Kay v. Lambeth LBC, on which a panel of seven of their Lordships sat, and from whose opinions emerged a number of competing ratios, some made express by their Lordships and others implicit in the decision. As well as this sometimes it is hardly ever expressly.

As an example, the Ratio Decidendi in Donoghue v. Stevenson would be that a person owes a duty of care to those who he can reasonably foresee will be affected by his actions. ...

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