After the 1979 upheaval of the Pahlavi Dynasty by the Islamic Revolution, the system was greatly altered. The legal code is now based on Shi'a Islamic law or sharia, although many aspects of civil law have been retained, and it is integrated into a civil law legal system
Any objections?
Again, Iran doesn't use sharia law. This state uses a set of laws, which were passed by legislative body, called Islamic Consultative Assembly. Members of legislative body are elected through national voting. And nobody cares what writers of article on Wikipedia are thinking about that. Of course almost 100% of MPs are muslims, that's why their law is similar to proposed by sharia system, but this doesn't mean that they're using sharia law.
Classic islamic states are proposed to use sharia law directly and any modification or interpretation of law by people is strictly prohibited. Only clergymen are allowed to do this.
You have to bring forward something more substantial than mere words. You deny Wikipedia and its sources the authority. Ok then, but how can I consider your words authoritative as well?
Nevertheless, here's another quote from Wikipedia on the Iranian judicial system:
According to some Iranian officials, the judiciary of Iran does not follow Sharia law, but it is civil law ratified by the Parliament. However, all agree that multiple aspects of sharia law are observed in the legal system.
According to one source, the new laws of the Islamic Republic "modify the sharia in three significant ways."
They give the state the "ultimate say" over the death penalty by allowing a new High Court to review death sentences passed by lower magistrates." In contrast, sharia in "its pure form" had no appeals system and gave local judges final say. However, virtually all other countries using sharia law now have an appeals system. While in lesser sentences, the judges verdict would be final, in more serious crimes, the sentence could be appealed to the Provincial Appeals Court. In a capital crime, it would be appealed to the Supreme Court of Cassation. Sometimes criminals get multiple appeals that last for years, depending upon the evidence against them along with "reasonable doubt". Retrials can be ordered, typically in the same court that convicted the prisoner.
Laws allow circumstantial evidence to be used in deciding a case "under the rubric of 'the judge's reasoning.'"
Third, the legal system has introduced long-term imprisonment - which was also traditionally not used in sharia law - under 'discretionary punishment.' Traditionalist judges, however, "continue to prefer corporal punishments ..." in sentencing. In 2008, the then Head of Judiciary Ayatollah Hashemi Shahroudi (considered a moderate) asked judges to carry out more corporal punishment and less imprisonment, because "long term imprisonment is expensive, is not effective, and prevents criminals from reintegrating into society"