- Ensure that laws passed are in accordance with the constitution.
- Interpret what the law means and set out how it should be applied in particular cases.
- Preside over criminal trials for serious offences, resolve disputes between individuals, deliver sentences and make sure rules of procedures properly applied.
- Some also asked to chair enquiries e.g. Hutton enquiry after the invasion of Iraq.
- In past if they were Law Lords, the would…