Necessity As A Ground Of Necessity In Criminal Law

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1 Introduction
Necessity as a ground of justification falls under the third element of the crime, Unlawfulness, in Criminal Law. The need to rely on the defence of necessity arises when one must choose between suffering an inevitable evil or danger and breaking the law to avoid such an evil and can be used if the accused, when faced with such a dilemma, chooses to break the law and/or inflict harm on an innocent third party. Necessity, as a defence to murder, violates the Constitutional rights to life and equality, as the right to life is viewed as "antecedent to all other rights in the Constitution." Because, “on a charge of murder, a successful defence of necessity or compulsion would imply that one life (that of the accused) is more valuable than that of the deceased,” it is questioned and critically discussed herein what the legal position regarding this matter should be. English law expects that one must be the hero and lay down his or her life for the life of another, while the South African (SA) law position is that necessity “can constitute a complete defence to a charge of murder.”

2 Necessity as a ground of justification
Necessity as a ground of justification will succeed if one acts out of necessity to protect one’s (or another’s) legally recognised interests from an inevitable danger or evil. This inevitable danger may take the form of an unlawful human act, a natural disaster or an attack by an animal. There is, therefore, a weighing up of the threatened interest and the violated interest.
Necessity can be used as a defence, making the specific act lawful , in certain circumstances if the act complies with the requirements of the defence being (1) there must be an inevitable danger threatening a legally reco...

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...f another above his or her own. For this defence to succeed, the courts must be convinced that, under the circumstances, it was necessary to take a life in order to save one’s own.
On the other hand, English law unrealistically expects a person in a situation of necessity in the case of murder to, in conflict with the SA position, sacrifice his or her own life in order to save that of another.
A more realistic way in which the law could develop in this regard is to take into account both positions, namely that although it is arguable whether a successful defence of murder contradicts the Constituiton, it is necessary to consider a realistic response of a person (the accused) under circumstances of necessity. There must, however, be stringent consideration of the circumstances when taking into account the success of the defence and punishment for the conduct.

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