In criminal law, mens rea is the mental state of the crime committed and the legal determination of a crime may depend upon both a mental state and actus reus, like the designation of a homicide as murder is a matter of intention to commit a crime or in some jurisdictions knowledge that one's action would cause a crime to be committed. The mitigation of culpability under some established legal doctrines may reduce the severity of some criminal charges, and so mental state is an element of most crimes, other than crimes of strict liability.
Actus reus, sometimes called the external element or the objective element of a crime, is the Latin term for the "guilty act", which, when proving it before the court beyond a reasonable doubt in combination with the mens rea, "guilty mind", produces criminal liability in the common law-based criminal law jurisdictions of England and Wales, Canada, Australia, India, Kenya, Pakistan, South Africa, New Zealand, Scotland, Nigeria, Ghana, Ireland, Israel and the United States. In the United States, some crimes also require proof of an attendant circumstance.
In criminal and civil law, strict liability is a standard of liability under which a person is legally responsible for the consequences flowing from an activity even in the absence of fault or criminal intent on the part of the defendant.
In law, attendant circumstances are the facts surrounding an event.
In criminal law, the intoxication defense is a defense by which a defendant may claim diminished responsibility on the basis of substance intoxication. Where a crime requires a certain mental state to break the law, those under the influence of an intoxicating substance may be considered to have reduced liability for their actions. With regard to punishment, intoxication may be a mitigating factor that decreases a prison or jail sentence. Numerous factors affect the applicability of the defense.
In criminal law, criminal negligence is an offence that involves a breach of an objective standard of behaviour expected of a defendant. It may be contrasted with strictly liable offences, which do not consider states of mind in determining criminal liability, or offenses that requires mens rea, a mental state of guilt.
An attempt to commit a crime occurs if a criminal has an intent to commit a crime and takes a substantial step toward completing the crime, but for reasons not intended by the criminal, the final resulting crime does not occur. Attempt to commit a particular crime is a crime, usually considered to be of the same or lesser gravity as the particular crime attempted. Attempt is a type of inchoate crime, a crime that is not fully developed. The crime of attempt has two elements, intent and some conduct toward completion of the crime.
Fagan v Metropolitan Police Commissioner is a leading case that confirms the need for concurrence of actus reus and mens rea in most offences of the criminal law of England and Wales. It also advises realisation that a battery is ongoing will render the omission to act to remove that battery being inflicted a conscious battery, being sufficient concurrence.
In law, the principle of imputation or attribution underpins the concept that ignorantia juris non excusat—ignorance of the law does not excuse. All laws are published and available for study in all developed states. The content of the law is imputed to all persons who are within the jurisdiction, no matter how transiently.
In criminal law, intent is a subjective state of mind that must accompany the acts of certain crimes to constitute a violation. A more formal, generally synonymous legal term is scienter: intent or knowledge of wrongdoing.
Common assault is an offence in English law. It is committed by a person who causes another person to apprehend the immediate use of unlawful violence by the defendant. In England and Wales, the penalty and mode of trial for this offence is provided by section 39 of the Criminal Justice Act 1988.
The legal principle of vicarious liability applies to hold one person liable for the actions of another when engaged in some form of joint or collective activity.
In law, an omission is a failure to act, which generally attracts different legal consequences from positive conduct. In the criminal law, an omission will constitute an actus reus and give rise to liability only when the law imposes a duty to act and the defendant is in breach of that duty. In tort law, similarly, liability will be imposed for an omission only exceptionally, when it can be established that the defendant was under a duty to act or duty of care.
In criminal law, strict liability is liability for which mens rea does not have to be proven in relation to one or more elements comprising the actus reus although intention, recklessness or knowledge may be required in relation to other elements of the offense. The liability is said to be strict because defendants could be convicted even though they were genuinely ignorant of one or more factors that made their acts or omissions criminal. The defendants may therefore not be culpable in any real way, i.e. there is not even criminal negligence, the least blameworthy level of mens rea.
Manslaughter is a common law legal term for homicide considered by law as less culpable than murder. The distinction between murder and manslaughter is sometimes said to have first been made by the ancient Athenian lawmaker Draco in the 7th century BC.
R v Miller is an English criminal law case demonstrating how actus reus can be interpreted to be not only an act, but a failure to act.
English criminal law concerns offences, their prevention and the consequences, in England and Wales. Criminal conduct is considered to be a wrong against the whole of a community, rather than just the private individuals affected. The state, in addition to certain international organisations, has responsibility for crime prevention, for bringing the culprits to justice, and for dealing with convicted offenders. The police, the criminal courts and prisons are all publicly funded services, though the main focus of criminal law concerns the role of the courts, how they apply criminal statutes and common law, and why some forms of behaviour are considered criminal. The fundamentals of a crime are a guilty act and a guilty mental state. The traditional view is that moral culpability requires that a defendant should have recognised or intended that they were acting wrongly, although in modern regulation a large number of offences relating to road traffic, environmental damage, financial services and corporations, create strict liability that can be proven simply by the guilty act.
Under United States law, an element of a crime is one of a set of facts that must all be proven to convict a defendant of a crime. Before a court finds a defendant guilty of a criminal offense, the prosecution must present evidence that, even when opposed by any evidence the defense may choose, is credible and sufficient to prove beyond a reasonable doubt that the defendant committed each element of the particular crime charged. The component parts that make up any particular crime vary now depending on the crime.
Fault, as a legal term, refers to legal blameworthiness and responsibility in each area of law. It refers to both the actus reus and the mental state of the defendant. The basic principle is that a defendant should be able to contemplate the harm that his actions may cause, and therefore should aim to avoid such actions. Different forms of liability employ different notions of fault, in some there is no need to prove fault, but the absence of it.
Criminal law is the body of law that relates to crime. It prescribes conduct perceived as threatening, harmful, or otherwise endangering to the property, health, safety, and welfare of people inclusive of one's self. Most criminal law is established by statute, which is to say that the laws are enacted by a legislature. Criminal law includes the punishment and rehabilitation of people who violate such laws.
