(the law of retaliation/retribution), diyyeh, or blood money (to compensate for the death/injury), Qanon-e Ta'zir (tazir is a crime that receives a discretionary sentence by a judge), Qanon-e Qisas (Retribution Law). The Supreme Audit Court of Iran regulates banking and financial operations and interest (riba) is forbidden. In 1991–1994, Iran combined all of these laws into the unified "Islamic Penal Code" which consisted of five "Books". The new Islamic Penal Code was adopted in January 2012 and incorporates the bulk of penal laws in the IRI, replacing Books One through Four of the old code. Book Five of the Islamic Penal Code ("the only part of the Penal Code that has been adopted permanently and is not subject to experimental periods") passed on May 22, 1996. Sharia in the IRI has been modified to some degree, according to one source, the new laws of the Islamic Republic "modify the sharia" (i.e. what Muslims believe is God's legislation) "in three significant ways": allowing the appeal of decisions, the use of circumstantial evidence in cases, and long-term imprisonment as a punishment. In a 2013 poll by Pew Research Center, while 83% of Iranians favored the use of Islamic law, but only 37% of Iranians believed that Iran's legal system closely follows Islamic law. See also Judicial system of the Islamic Republic of Iran Blasphemy law in Iran Censorship in Iran Constitution of the Islamic Republic of Iran Corruption in Iran Crime in Iran Human rights in the Islamic Republic of Iran Intellectual property in Iran Iran Tribunal Iran's Family Protection Law Iranian Cyber Police Iranian labor law Iranian nationality law Law Enforcement Forces of Islamic Republic of Iran List of economic laws in Iran List of national legal systems Parading on donkey Special Clerical Court Taxation in Iran Traffic police of Iran Chief Justice of Iran References External links Profile of Judiciary System of Iran The Judiciary of The Islamic Republic of Iran Iran's constitutional charter for the Judiciary Iranian American Bar Association, Detention Laws in Iran Duties of the Iranian Parliament Government of Iran Law of Iran Politics of Iran