Deterrence (legal) in the context of "Community sentence"

Murder is the unlawful killing of another human without justification or valid excuse committed with the necessary intention as defined by the law in a specific jurisdiction. This state of mind may, depending upon the jurisdiction, distinguish murder from other forms of unlawful homicide, such as manslaughter. Manslaughter is killing committed in the absence of malice, such as in the case of voluntary manslaughter brought about by reasonable provocation, or diminished capacity. Involuntary manslaughter, where it is recognized, is a killing that lacks all but the most attenuated guilty intent, recklessness.

Most societies consider murder to be an extremely serious crime, and thus believe that a person convicted of murder should receive harsh punishments for the purposes of retribution, deterrence, rehabilitation, or incapacitation. In most countries, a person convicted of murder generally receives a long-term prison sentence, a life sentence, or capital punishment. Some countries, states, and territories, including the United Kingdom and other countries with English-derived common law, mandate life imprisonment for murder, whether it is subdivided into first-degree murder or otherwise.

Retributive justice is a legal concept whereby the criminal offender receives punitive damages proportional or similar to the crime. As opposed to revenge, retribution—and thus retributive justice—is not personal, is directed only at wrongdoing, has inherent limits, involves no pleasure at the suffering of others (e.g., schadenfreude, sadism), and employs procedural standards. Retributive justice contrasts with other purposes of punishment such as deterrence (prevention of future crimes), exile (prevention of opportunity) and rehabilitation of the offender.

The concept is found in most world cultures and in many ancient texts. Classical texts advocating the retributive view include Cicero's De Legibus (1st century BC), Immanuel Kant's Science of Right (1790), and Georg Wilhelm Friedrich Hegel's Elements of the Philosophy of Right (1821). The presence of retributive justice in ancient Jewish culture is shown by its mention in the law of Moses, which refers to the punishments of "life for life, eye for eye, tooth for tooth, hand for hand, foot for foot" as also attested in the Code of Hammurabi. Documents assert similar values in other cultures, though the judgment of whether a particular punishment is appropriately severe can vary greatly across cultures and individuals in accord with circumstance.

Incapacitation in the context of criminal sentencing philosophy is one of the functions of punishment. It involves capital punishment, sending an offender to prison, or possibly restricting their freedom in the community, to protect society and prevent that person from committing further crimes. Incarceration, as the primary mechanism for incapacitation, is also used in an effort to deter future offending.