justice and revenge in shakespeare can someone please help

Could some one please help me :(:(:bawling::bawling:i am writing a thesis on the relationship between justice and revenge in shakespeare.

The two plays i am examining are titus andronicus and the merchant of venice, i need examples of justice and examples of revenge.

I would be really greatful if someone could help me with the law part as i know nothing about the types of laws. They are roman,elizabethan,venetian,chuch and mosaic. I would like to know what the differences between them are and essentially what each one is about.

Thank you yo everyone who replies:yawnb:

Lots of revenge in titus. I guess lavinia's death was just as it was dignified- he didn't want her to lead a half-life.