Juridical Study of the Condition for

In legal terminology, proportion refers both to proportion between risk and loss resulted from attack and risk and loss resulted from defense and at the same time it refers to proportion between defense to prevent the risk and loss produced by the encroaching one and the encroachment. Concerning risks and losses resulted from encroachment, jurists speak generally about dangers for life and reputation as well as financial risks. Nor have they doubted about suitability of every detrimental act (even killing the encroaching one) if necessary to prevent him fromendangering other's lives or reputations. In spite what that may be understood at first glance, killing the encroaching one to defend properties has not been prescribed by Muslim jurists as a suitable defense. But if the encroaching one (if he is of sound mind, free, and of legal age) resists the defending one and if he cannot be prevented, the Holly Legislator prescribes to kill him to protect person's security. The defender should be sure in a conventional and reasonable way that his defensive act does not exceed what that is necessary to push the encroaching one away