Knowledge (legal construct)

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In law, knowledge is one of the degrees of mens rea that constitute part of a crime. For example, in English law, the offence of knowingly being a passenger in a vehicle taken without consent (TWOC) requires that the prosecution prove not only that the defendant was a passenger in a vehicle and that it was taken by the driver without consent, but also that the defendant knew that it was taken without consent. [1]

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Under the principle of ignorantia juris non excusat , ignorance of or mistake about the law is no defense. The mens rea of knowledge refers to knowledge about certain facts. It is "a positive belief that a state of affairs exists". [2]

Knowledge can be actual, constructive, or imputed.

Actual knowledge

A defendant does not have actual knowledge if they believe something to the contrary. The standard is subjective and the belief of the defendant need not be reasonable, only honest. [3] For example, in R v. Williams [4] the defendant intervened in what he thought was a mugging but was in fact a citizen's arrest. His mistake was upheld as a defence against a charge of assault. In Beckford v. R [5] the defendant was a police officer who shot and killed V. Beckford claimed that he believed that V was shooting at him. It was found that the correct test was whether D "honestly believed" facts which, if true, would establish a defence. The reasonableness of the belief would be evidential in finding whether it was truly believed.

Constructive knowledge

Knowledge is also found where a defendant suspects that circumstances exist and "deliberately decides not to make any further enquiries" in case his suspicions prove well founded. [3] A common example is a person who purchases significantly inexpensive and unprovenanced but desirable items from a stranger. Such a person is likely to be fixed with constructive knowledge that the items were stolen. [6]

Imputed knowledge

This is relevant in strict liability offences and in corporate crime. For example, if a bar manager delegates his duties to others and those others know of unlawful activities on the premises, the manager can be fixed with imputed knowledge of the unlawful activities. [7]

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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 said imputation might also be termed "fair notice." The content of the law is imputed to all persons who are within the jurisdiction, no matter how transiently.

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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.

Self-defence is a defence permitting reasonable force to be used to defend one's self or another. This defence arises from both common law and the Criminal Law Act 1967. Self-defence is a justification defence rather than an excuse.

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In the English law of homicide, manslaughter is a less serious offence than murder, the differential being between levels of fault based on the mens rea or by reason of a partial defence. In England and Wales, a common practice is to prefer a charge of murder, with the judge or defence able to introduce manslaughter as an option. The jury then decides whether the defendant is guilty or not guilty of either murder or manslaughter. On conviction for manslaughter, sentencing is at the judge's discretion, whereas a sentence of life imprisonment is mandatory on conviction for murder. Manslaughter may be either voluntary or involuntary, depending on whether the accused has the required mens rea for murder.

In the field of criminal law, there are a variety of conditions that will tend to negate elements of a crime, known as defenses. The label may be apt in jurisdictions where the accused may be assigned some burden before a tribunal. However, in many jurisdictions, the entire burden to prove a crime is on the prosecution, which also must prove the absence of these defenses, where implicated. In other words, in many jurisdictions the absence of these so-called defenses is treated as an element of the crime. So-called defenses may provide partial or total refuge from punishment.

In law, ignorantia juris non excusat, or ignorantia legis neminem excusat, is a legal principle holding that a person who is unaware of a law may not escape liability for violating that law merely by being unaware of its content.

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Criminal law is a system of laws that is connected with crimes and punishments of an individual who commits crimes. In comparison, civil law is where the case argues their issues with one entity to another entity with support of the law. Crimes can vary in definition by jurisdiction but the basis for a crime are fairly consistent regardless.

In English criminal law, an inchoate offence is an offence relating to a criminal act which has not, or not yet, been committed. The main inchoate offences are attempting to commit; encouraging or assisting crime; and conspiring to commit. Attempts, governed by the Criminal Attempts Act 1981, are defined as situations where an individual who intends to commit an offence does an act which is "more than merely preparatory" in the offence's commission. Traditionally this definition has caused problems, with no firm rule on what constitutes a "more than merely preparatory" act, but broad judicial statements give some guidance. Incitement, on the other hand, is an offence under the common law, and covers situations where an individual encourages another person to engage in activities which will result in a criminal act taking place, and intends for this act to occur. As a criminal activity, incitement had a particularly broad remit, covering "a suggestion, proposal, request, exhortation, gesture, argument, persuasion, inducement, goading or the arousal of cupidity". Incitement was abolished by the Serious Crime Act 2007, but continues in other offences and as the basis of the new offence of "encouraging or assisting" the commission of a crime.

Non-fatal offences against the person, under English law, are generally taken to mean offences which take the form of an attack directed at another person, that do not result in the death of any person. Such offences where death occurs are considered homicide, whilst sexual offences are generally considered separately, since they differ substantially from other offences against the person in theoretical basis and composition. Non-fatal offences against the person mainly derive from the Offences against the Person Act 1861, although no definition of assault or battery is given there.

English law contains homicide offences – those acts involving the death of another person. For a crime to be considered homicide, it must take place after the victim's legally recognised birth, and before their legal death. There is also the usually uncontroversial requirement that the victim be under the "King's peace". The death must be causally linked to the actions of the defendant. Since the abolition of the year and a day rule, there is no maximum time period between any act being committed and the victim's death, so long as the former caused the latter.

References

  1. Theft Act 1968, s.12
  2. Herring (2004) p.170
  3. 1 2 Herring (2004) p.171
  4. [1987] 3 All ER 411, CA (England)
  5. [1987] 3 All ER 425, (UK Privy Council)
  6. Anderton v. Ryan [1985] AC 560, HL (England)
  7. Ferguson v. Weaving [1951] 1 All ER 412 (England)

Bibliography