Definition - This rule applies where the act before the court reformed a previous piece of law from the common law or an earlier stature, e.g. it is a piece of law such as the Theft Act 1968 that replaced the Larceny Act 1916
This rule was created in Heydon's case, the judge must consider:
What was the common law/statute before making the act?
What was the mischief and defect for which the common law/statute did not provide?
Identify the remedy Parliament tried to provide
The court should then interpret the act in such a way that the mischief is covered and a remedy is provided
Features:
Where the words are interpreted to give effect to the intention of Parliament
Similar to the purposive approach
Judges often rely on extrinsic aids to help identify the intention of Parliament and the mischief with the previous act
Gives judges the most flexibility to decide how to resolve the mischief rather than consider the wording
The Law Commission described the rule as 'a rather more satisfactory approach'
Cases:
Smith v Hughes - She was found guilty of an offence as she was still causing the mischief of harassing members of the public, which Parliament intended to stop when passing the act
Royal College of Nursing v DHSS - The mischief Parliament were trying to get rid of was illegal abortions so it was decided that nurses could legally perform abortions as they were safer