presumption of innocence

The presumption of innocence is a legal principle that every person accused of any crime is considered innocent until proven guilty. Under the presumption of innocence, the legal burden of proof is thus on the prosecution, which must present compelling evidence to the trier of fact (a judge or a jury). If the prosecution does not prove the charges true, then the person is acquitted of the charges. The prosecution must in most cases prove that the accused is guilty beyond a reasonable doubt. If reasonable doubt remains, the accused must be acquitted. The opposite system is a presumption of guilt. In many countries and under many legal systems, including common law and civil law systems (not to be confused with the other kind of civil law, which deals with non-criminal legal issues), the presumption of innocence is a legal right of the accused in a criminal trial. It is also an international human right under the UN's Universal Declaration of Human Rights, Article 11. History Roman law The sixth-century Digest of Justinian (22.3.2) provides, as a general rule of evidence: "Proof lies on him who asserts, not on him who denies". It is there attributed to the second and third century jurist Julius Paulus Prudentissimus. It was introduced in Roman criminal law by emperor Antoninus Pius.