Criminal law is the body of law that relates to crime. It regulates social conduct and prescribes whatever is threatening, harmful, or otherwise endangering to the property, health, safety, and moral welfare of people. It includes the punishment of people who violate these laws. Criminal law varies according to jurisdiction, and differs from civil law, where emphasis is more on dispute resolution and victim compensation than on punishment.
The various essential Elements in Criminal Law can be described as follows: The criminal law generally prohibits undesirable acts. Thus, proof of a crime requires proof of some act. Scholars label this the requirement of an actus reus or guilty act. Some crimes – particularly modern regulatory offenses – require no more, and they are known as strict liability offenses (E.g. Under the Road traffic Act 1988 it is a strict liability offence to drive a vehicle with an alcohol concentration above the prescribed limit). Nevertheless, because of the potentially severe consequences of criminal conviction, judges at common law also sought proof of an intent to do some bad thing, the mens rea or guilty mind. As to crimes of which both actus reus and mens rea are requirements, judges have concluded that the elements must be present at precisely the same moment and it is not enough that they occurred sequentially at different times. Actus reus Actus reus is Latin for "guilty act" and is the physical element of committing a crime. It may be accomplished by an action, by threat of action, or exceptionally, by an omission to act, which is a legal duty to act. Mens rea Mens rea is another Latin phrase, meaning "guilty mind". This is the mental element of the crime. A guilty mind means an intention to commit some wrongful act. Intention under criminal law is separate from a person's motive (although motive does not exist in Scots law). Strict liability Strict liability can be described as criminal or civil liability not with standing the lack mens rea or intent by the defendant. Not all crimes require specific intent, and the threshold of culpability required may be reduced or demoted. For example, it might be sufficient to show that a defendant acted negligently, rather than intentionally or recklessly. In offenses of absolute liability, other than the prohibited act, it may not be necessary to show the act was intentional. Generally, crimes must include an intentional act, and "intent" is an element that must be proved in order to find a crime occurred. The idea of a "strict liability crime" is an oxymoron. The few exceptions are not truly crimes at all – but are administrative regulations and civil penalties created by statute, such as crimes against the traffic or highway code. Fatal offenses A murder, defined broadly, is an unlawful killing. Unlawful killing is probably the act most frequently targeted by the criminal law. In many jurisdictions, the crime of murder is divided into various gradations of severity, e.g., murder in the first degree, based on intent. Malice is a required element of murder. Manslaughter (Culpable Homicide in Scotland) is a lesser variety of killing committed in the absence of malice, 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. However, Settled insanity is a possible defense. Personal offenses Many criminal codes protect the physical integrity of the body.
The crime of battery is traditionally understood as an unlawful touching, although this does not include everyday knocks and jolts to which people silently consent as the result of presence in a crowd. Creating a fear of imminent battery is an assault, and also may give rise to criminal liability. Non-consensual intercourse, or rape, is a particularly egregious form of battery. Property offenses Main articles: Criminal damage, Criminal Trespass, Theft, Robbery, Extortion, Dacoity, Burglary and Fraud Property often is protected by the criminal law. Trespassing is unlawful entry onto the real property of another. Many criminal codes provide penalties for conversion, embezzlement, theft, all of which involve deprivations of the value of the property. Robbery is a theft by force. Fraud in the UK is a breach of the Fraud Act 2006 by false representation, by failure to disclose information or by abuse of position. Participatory offenses Some criminal codes criminalize association with a criminal venture or involvement in criminality that does not actually come to fruition. Some examples are aiding, abetting, conspiracy, and attempt. Mala in se v. mala prohibita While crimes are typically broken into degrees or classes to punish appropriately, all offenses can be divided into 'mala in se' and 'mala prohibita' laws. Both are Latin legal terms, mala in se meaning crimes that are thought to be inherently evil or morally wrong, and thus will be widely regarded as crimes regardless of jurisdiction. Mala in se offenses are felonies, property crimes, immoral acts and corrupt acts by public officials. Mala prohibita, on the other hand, refers to offenses that do not have wrongfulness associated with them. Parking in a restricted area, driving the wrong way down a one-way street, jaywalking or unlicensed fishing are examples of acts that are prohibited by statute, but without which are not considered wrong. Mala prohibita statutes are usually imposed strictly, as there does not need to be mens rea component for punishment under those offenses, just the act itself. For this reason, it can be argued that offenses that are mala prohibita are not really crimes at all.