“Criminal law “ summary

A crime is a wrong act against another human being or the state for which people can be penalized. Some acts can be considered as a crime or not in different countries.
A lot of systems of law have a principle of presumption of innocence. Two elements of a crime can be marked out: Actus Reus-an objective part of a crime and Mens Rea-a subjective part of a crime. All crimes have a substantial cause and most of them are committed malice aforethought. Defendants can defense themselves if they found some reasons why thay can not be sentenced.
Technical changes, differences between societies and governments are the most important reasons of the increase of crimes.