Ow does Dworkin derive his theory of integrity? Is integriy a virtue of of law ?Does it serve the ends of justice

This must meet the 2 (1) standard of any top university in the UK.
Some guidelines to be addressed in the answer:-
1) The two types of integrity i.e legislative and judicial;
2) what does it mean to speak in one voice;

3)Contrast between pure and judicial integrity and the relationship btw them. How does integrity construt our sense of commnuity throught the idea of equality;

4) the idea of equlity of respect