This document provides an introduction to civil law and compares the procedures used in civil law systems to those used in common law systems. It notes that civil law systems use an inquisitorial approach led by a judge, while common law systems use an adversarial approach driven by lawyers. In civil law, evidence is gathered over several smaller hearings rather than in one compressed trial. Judges play a more active role in questioning witnesses rather than lawyers. Criminal procedures also follow an inquisitorial model with investigative and examining phases led by a judge, unlike common law systems which rely on public prosecutors. Overall, the document outlines some of the key distinctions between civil and common law approaches to legal procedure.