What is it?
Process by which judges follow the decisions of previous cases if material facts are sufficiently similar
Operates through the doctrine stare decisis – to stand by what has previously been decided
Why do we have it?
Certainty/predictability – ensures justice is done
Allows lawyers to predict outcome & advise clients
People have full knowledge of the consequences
How does it operate?
In order for the doctrine to operate effectively it needs:
1. Effective law reporting – must be accurately recorded so judges can refer back to them
2. Clear hierarchy of courts so that each judge knows who should be followed
3. A method of identifying the parts of the judgement that set the precedent:
The legal reason/principle behind the decision is contained in the judgment – the ratio decidendi – this is what sets the precedent (NOT the decision itself)
E.g. R v Bentham 2005: man robbed employer using his fingers in jacket to imitate a gun – court held he could not be guilty of possessing an imitation firearm – legal reasoning for this was: you cannot possess something which is not separate from yourself (that is the ratio and is the binding precedent)
Everything else in judgement = obiter dicta - e.g. legal principles; hypothetical examples (but NOT part of the actual reason for the decision)
E.g. Donoghue v Stevenson 1932 (snail in the bottle) – Lord Atkin said in his obiter comments: there should be a legal principle used when establishing duty of care in negligence cases (became known as the ‘neighbour principle’)
Obiter statements MAY be followed but are not binding
Following: this means you apply the same legal principle from an earlier case in a present case because the material facts are the same and the earlier case came from a court higher up in the hierarchy or from the same court
Types of precedent
1. Original precedent
When a point of law within a case (i.e. part of the ratio) is unique and has not been