The main principles of Roman law were that the laws were applied equally to both rich and poor and that a person was innocent until proven guilty by trial or judgement. These laws were:
1) All citizens had the right to equal treatment under law.
2) A person was considered innocent until proven guilty.
3) The burden of proof rested with the accuser rather than the accused.
4) Any law that seemed unreasonable or grossly unfair could be set aside.