Stare decisis means let the "decisionstand" and courts are bound by decisions by higher courts.
The SupremeCourt is bound by the EuropeanCourt of Justice on EU Issues, but it binds all other courts below it.
The Court of Appeal (CivilDivision) are bound by the SupremeCourt and itself but with exceptions and it binds all lower courts.
Young v Bristol Aeroplane: gave the three rules on when it need not follow its own decisions.
The Court of Appeal (Criminal Division) are bound by the Supreme Court and itself and it binds all lower courts.
The King's Bench Devision of the High Court are bound by the Supreme Court and the Court of Appeal and itself. It binds all lower courts.
The Chancery and Family Divisions of the High Courts are bound by the Supreme Courts, Court of Appeal and themselves. They bind the High Court generally but also all lower courts.
The High Court is bound by the Supreme Court, Court of Appeal, and the Divisional Courts and binds all lower courts.