Differences between civil law and common law systems

* The majority of civil law jurisdictions follow an inquisitorial system of adjudication, in which judges undertake an active investigation of the claims by examining the evidence and preparing reports.
* In common law systems, the trial judge, the investigators, and the prosecution are separate functions. After an investigation has been completed and charges lodged, the trial judge presides over proceedings grounded in the adversarial system of dispute resolution, where both the prosecution and the defense prepare arguments to be presented before the court. Some civil law systems have adopted adversarial procedures.

Proponents of each system tend to consider that their system defends best the rights of the innocent. There is a tendency in common law countries to believe that civil law / inquisitorial systems do not have the so-called "presumption of innocence", and do not provide the defense with adequate rights. Conversely, there is a tendency in countries with an inquisitorial system to believe that accusatorial proceedings unduly favor rich defendants who can afford large legal teams, and are very harsh on poorer defendants.