Explain how the doctrine of Judicial Precedent operates. What is the importance of judges being able to use the doctrine to distinguish cases on their facts?

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Explain how the doctrine of Judicial Precedent operates.  What is the importance of judges being able to use the doctrine to distinguish cases on their facts?

Judicial precedent is the process whereby judges follow previously decided cases where the facts or point of law are sufficiently similar.  It involves the following principles:

Stare decisis ‘let the decision stand’, whereby lower courts are bound to apply the legal principles set down by superior courts in earlier cases. ‘The HoL held that a manufacturer owed a duty of care to the consumer that products are safe.’

The binding part of a previous decision is the ratio decidendi ‘reason for deciding’ and judges in later cases must follow it.

All the parts of the judgment which do not form part of the ratio decidendi of the case are called obiter dicta Latin for ‘things said by the way’.  These are often discussions of hypothetical situations.  None of the obiter dicta forms part of the case law.

Where there is no existing precedent, the court will “declare” the law and the case will become an original precedent.  

‘There are a number of ways in which judges may avoid precedents.  They could distinguish the precedent on its facts, arguing that the facts of the case under consideration are different in some way from those of the previous case, and therefore the rule laid down does not apply to them.  Since the facts are unlikely to be identical, this is the simplest way to avoid a precedent.  

Judges could distinguish the point of law by arguing that the legal question answered by the precedent is not the same as that asked in the present case.  They can state that the precedent is outdated.  They can avoid the precedent by giving it a very narrow ratio decidendi.  Since judges never state ‘this is the ratio decidendi’, it is possible to argue about which bits of the judgment actually form the ratio and therefore bind courts in later cases.  Judges wishing to avoid a precedent may reason that those parts of the judgment which seem to apply to their case are not part of the ratio, and are only obiter dicta, which they are not obliged to follow.  It can be argued that the precedent has no clear ratio decidendi.’

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A previous case is only binding in a later case if the legal principle involved is the same and the facts are similar.  Distinguishing a case on its facts, or on the point of law involved, is a device used by judges to avoid the consequences of an earlier inconvenient decision which is binding on them.  ‘Distinguishing is a major factor in allowing the doctrine of precedent to remain flexible and meet the needs of a changing society.’

‘When faced with a case on which there appears to be a relevant earlier decision, judges can follow the precedent if ...

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