Precedent is solely dependent on the hierarchy of the courts
Supreme court is at the top- binds all courts below it
Court of Appeal is bound by SC and itself and binds those below
High court if bound by both SC and COA and binds those below
Overrule- More senior courts can disagree and create new precedent
Reverse- disagree and change it
Distinguish- facts not similar enough- can ignore
Ratio decendi- reason for decision after applying legal principles
Obiter dictum- useful opinion expressed in judgement