Comparative Study of Prohibiting the Use of Nuclear Weapons in Jurisprudence and International Law

Human life preservation is of both lawyer and intellectuals' interests. Each weapon which threatens human life and causes collective murder is a danger for the sake of life and property security and its application is banned. The purpose of this research is illuminating the basis and proofs for sanctity of application of this weapon based on jurisprudence and international law.  Jurisprudence proof including Verses relating to corruption in earth and also human life preservation, Narratives related to poisoning the enemy and prohibition of murdering the women and children and environment preservation, intellect reason, Vezr and Elzam principal and finally law proofs including non-proliferation of nuclear weapons, United Nations Charter and the rule of prohibition of excessive pain are discussed. Investigating the above sources, prohibition of nuclear weapon application is proved in normal situation in both jurisprudence and international law. But in especial situation the sentence is different; some jurisconsults decreed the allowance of collective murder weapons application when the victory is subjected to it.  Investigation of international law doesn't provide any explicit reason for the prohibition of this weapon in the legitimate defense condition.