Capital punishment is the execution of a person by the state as punishment for a crime. The word "capital" comes from the Latin word "capitalis", which means "regarding the head". At one point and time capital crimes where punished by severing the head. Crimes that can result in the death penalty are known as capital crimes or capital offenses. Capital punishment has been used in societies throughout history as a way to punish crime and suppress political dissent. In most places that practice capital punishment today, the death penalty is reserved as punishment for premeditated murder, espionage, treason, or as part of military justice. In some countries sexual crimes, such as rape, adultery and sodomy, carry the death penalty, as do religious crimes such as apostasy (the formal renunciation of the State religion). In many retentionist countries (countries that use the death penalty), drug trafficking is also a capital offense. In China human trafficking and serious cases of corruption are also punished by the death penalty.