The legal system is the system of law in a country. In Australia this is the common law system. Uses the adversarial system of trial. The judge is impartial.
The civil law system is based on Roman law and is in countries such as Italy and France-European countries. The judge plays a more active role and investigates directly.
The sources of law for the common law system is statute law, common law and the constitution
Legal processes are the PROCESSES people take to access the law. E.g. negotiation, mediation and conciliation, arbitration, common law etc.
hope that helped