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The researcher by taking advantage of original resources and the major Islamic precepts, i.e, the holy Quran, the tradition, presents a basic for the legitimation of the security and educative measures. He demonstrates that Islamic religion has not been neglected from the social security and
dangerous offenders, and delinquents taken in western nations, the subject matter of the research, come to be performed under the titel of "security and educative measures" and the broad complemental)' punishments, and that it
has had a funcional background in Islam and not only does the punishment of criminals fail to have a clash with their rehabilitation and prevention of crime, but also they are favored religiously.
Comparative survey of security measures and the search that writer has done for finding the principles of legitimacy of this effective constitution of
criminal politics and for finding similar constitutions in Quran, tradition and votes and judgments of the jurists show that in Islamic sources, there are useful foundations under pretexts of recommending the lawful and
forbidding the sinful acts, repelling corruption, reformation and training measures and so on, that sometimes are in the figure of relgious decrees has modified but most of them are scattered and from day to day one can feel more necessity of codifying and legislating them.