Interpretation of Statutes

Heydon’s Case

[1584] EWHC Exch J36; (1584) 3 Co Rep 7a

Facts

The case arose from land formerly belonging to the religious College of Ottery.
The college had granted copyhold interests to Ware the father and Ware the son for their lives.
While those life interests continued, the college granted Heydon a long lease over the same property.
Legislation enacted during the reign of Henry VIII dissolved religious houses and transferred much of their property to the Crown.
The legislation preserved certain genuine pre-existing interests but sought to prevent religious institutions from defeating the Crown’s acquisition by granting artificial or last-minute leases.
The dispute concerned whether Heydon’s lease remained valid after the college was dissolved.
In resolving that question, the Court formulated the method now known as the mischief rule.

Whether the lease granted to Heydon fell within the interests protected by the statute.
Whether the statute should be understood merely through isolated words or in light of the defect Parliament intended to cure.
What questions a court should ask when interpreting legislation that alters the previous law.

Before the legislation, religious institutions could grant leases and create interests over their property.
As dissolution became likely, such institutions could attempt to reduce the value of property passing to the Crown by creating long leases shortly before surrender.
Parliament’s remedy was to invalidate interests of the prohibited kind while protecting genuine and properly established earlier estates.
The Wares’ copyhold life interests were existing estates for life within the meaning and purpose of the statute.
Heydon’s later lease overlapped those interests and was created while they continued.
Treating the later lease as protected would allow the very avoidance mechanism Parliament intended to prevent.
The Court therefore did not confine itself to a technical comparison of the different forms of landholding.
It asked whether validating the lease would:
preserve the pre-existing legitimate position; or
continue the mischief against which Parliament had legislated.
Since Heydon’s lease would diminish the property passing upon dissolution, validating it would frustrate the legislative remedy.
The Court consequently interpreted the relevant words in a manner that distinguished genuine life interests from later arrangements defeating the statute.
The judgment’s lasting importance lies less in the historical land dispute than in its structured method of interpretation.

The Court held that the copyhold estates of Ware the father and son were existing life interests within the statute.
Heydon’s subsequent lease was therefore void.
The decision established the four-part mischief test.
The rule continues to influence purposive statutory interpretation, particularly where a literal reading would permit avoidance of the legislation.
It does not authorise courts to disregard clear language; it helps select the meaning that best addresses the identified statutory defect.
Use this case for: the origin and four questions of the mischief rule.