It is known beyond a shadow of a doubt, that during the 1980s, the rape of women political prisoners was prevalent. It was so prevalent as to make Ayatollah Montazeri, who was Khomeini’s deputy at the time, write the following to Khomeini in a letter dated October 7, 1986: “Did you know that young women are raped in some of the prisons of the Islamic Republic?”
In response, Ayatollah Khomeini wrote, “Yes! Such rapes are essential to prevent those anti Islam females from entering the heaven. If they are executed as virgins, they will enter the heaven. So, rapes are extremely important and done to prevent such elements from entering the heaven.”
Even recently, according to Iranian Parliamentary investigation committee, protestors, jailed after the disputed presidential elections, were raped in prison. Defeated Iranian presidential candidate Mehdi Karroubi said in a letter to powerful cleric Akbar Hashemi Rafsanjani, "A number of detainees have said that some female detainees have been raped savagely. Young boys held in detention have also been savagely raped."
Karroubi's "confidential letter" was delivered on July 29 to Rafsanjani in his capacity as head of the Assembly of Experts, the powerful body which selects and supervises the activities of the supreme leader.
A police statement issued on August 6, 2009 confirmed that serious violations took place in Kahrizak prison. The authorities said they had jailed the head of the detention centre.