IntroductionSiyasah shar'iyah is a broad doctrine of Islamic law which authorizesthe ruler to determine the manner in which the Shari'ah should be administered.The ruler may accordingly take discretionary measures, enact rules and initiatepolicies as he deems are in the interest of good government, providedthat no substantive principle of the Shari'ah is violated thereby. The discretionarypowers of the ruler under siyasah shar'iyah are particularly extensivein the field of criminal law. The head of state and those who are incharge of public affairs, the 'ulu al amr, may thus decide on rules and proceduresas they deem appropriate in order to discover truth and to determineguilt. With regard to the substantive law of crimes, too, the 'ulu al amr havepowers to determine what behavior constitutes an offense and what punishmentis to be applied in each case.Many observers have expressed concern over the wide discretionarypowers that rulers and judges enjoy under siyasah shar'iyah. It is suggestedthat siyasah, as such, defies effective control, and it is open to abuse, whichwould ultimately undermine the ideals of justice under the rule of law. Oneobserver has thus considered siyasah as "direct negation of what may be regardedas the second essential implication of the idea of the rule of law in asecular system- namely, the principle that the sovereign must not possessany arbitrary power over the subject."According to another critic, siyasah has enabled the Islamic ruler to enactlegislation, especially in the field of criminal law, under the guise of "administrativeregulations." But in effect, the ruler enacted independent legislationin such areas as taxation, police matters, and the administration of justice,in general, which often interferred with, or severely circumscribed, theShari'ah.Penalties imposed at the discretion of the ruler or the judge are knownas ra'z'irat. As a branch of siyasah, ta'zir (lit. deterence) must differ accordingto the nature of the offense and the particular circumstances of the offender.The judge may thus determine the punishment of ta'zir in each caseaccording to his own observations and personal ijtihad. It has been suggestedthat the individual in such a system is exposed to official abuse against whichhe has no effective means of protecting himself ...