Explanatory Notes are documents that explain the purpose of a Bill. All Government Bills and some Private Members' Bills have an accompanying Explanatory Note. They can be found among the 'Bill documents' on the relevant Bill page. [Glossary on parliament.gov.uk]
For help with finding & using Hansard (online or in print on the Ground Floor) and other government official papers, please start with the special guide below, created by a Bodleian Official Papers colleague
Official website of the statutory independent body created by the Law Commissions Act 1965 to keep the law under review and to recommend reform where it is needed. Its reports and consultation papers are made freely available.
This links to transcript of judgment [2002] UKHL 38 It has subsequently been reported [2002] 1 W.L.R. 2956. Lord Steyn on admissibility & role of Explanatory Notes in statutory interpretation.
Free resource "Following the decision in Pepper v Hart in 1993, if primary legislation is ambiguous or obscure the courts may in certain circumstances take account of statements made in Parliament by Ministers or other promoters of a Bill in construing that legislation. Until that decision, using Hansard in that way would have been regarded as a breach of Parliamentary privilege."