| A | B |
| common law | case law from landmark court cases |
| royal prerogative | derived from powers theoretically exercised by the sovereign |
| Authoritative documents | Examples: Dicey's Law of constitution which gave the rule of law; Bagehot's 'English constitution - gave basic principles |
| statute law | Acts of parliament. eg Human Rights Act. |
| Conventions | non legal rules that are widely accepted as binding |
| convention | Eg The PM is the leader of the largest party in the Commons |
| common law | From this comes freedom of speech; freedom of movement |
| EU treaties | Eg UK joined in 1973 ; also EU laws superior to UK laws |
| Statute law | Eg Terrorim Act 2006 - created a new offence of 'glorification of terror' |
| common law | handed down by judges |