Practice Statement
Encyclopedia
Practice Statement [1966] 3 All ER 77, was a statement made in the House of Lords
House of Lords
The House of Lords is the upper house of the Parliament of the United Kingdom. Like the House of Commons, it meets in the Palace of Westminster....

 by Lord Gardiner
Gerald Gardiner, Baron Gardiner
Gerald Austin Gardiner, Baron Gardiner, CH, QC, PC , was a British Labour politician, who served as Lord High Chancellor of Great Britain from 1964 to 1970 and during that time he introduced into British law as many reforms as any Lord Chancellor had done before or since...

, L.C., on July 26, 1966 on behalf of himself and the Lords of Appeal in ordinary.

Until 1966, the House of Lords
Judicial functions of the House of Lords
The House of Lords, in addition to having a legislative function, historically also had a judicial function. It functioned as a court of first instance for the trials of peers, for impeachment cases, and as a court of last resort within the United Kingdom. In the latter case the House's...

 in the United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 was bound to follow all of its previous decisions under the principle of stare decisis
Stare decisis
Stare decisis is a legal principle by which judges are obliged to respect the precedents established by prior decisions...

, even if this created "injustice" and "unduly restrict(s) the proper development of the law" (London Tramways Co. v London County Council [1898] AC 375). The Practice Statement 1966 is authority for the House of Lords to depart from their previous decisions. It does not affect the precedent
Precedent
In common law legal systems, a precedent or authority is a principle or rule established in a legal case that a court or other judicial body may apply when deciding subsequent cases with similar issues or facts...

ial value of cases in lower courts; all other courts that recognise the House of Lords as the court of last resort are still bound by House of Lords decisions. Before this, the only way a binding precedent could be avoided was to create new legislation on the matter.

This is the text of the Practice Statement:
Their Lordships regard the use of precedent as an indispensable foundation upon which to decide what is the law and its application to individual cases. It provides at least some degree of certainty upon which individuals can rely in the conduct of their affairs, as well as a basis for orderly development of legal rules.

Their Lordships nevertheless recognise that too rigid adherence to precedent may lead to injustice in a particular case and also unduly restrict the proper development of the law. They propose therefore, to modify their present practice and, while treating formal decisions of this house as normally binding, to depart from a previous decision when it appears to be right to do so.

In this connection they will bear in mind the danger of disturbing retrospectively the basis on which contracts, settlement of property, and fiscal arrangements have been entered into and also the especial need for certainty as to the criminal law.

This announcement is not intended to affect the use of precedent elsewhere than in this House.

Lord Gardiner's statement in the House of Lords, July 26, 1966.
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