According to Fars news, the Mojahedin Khalq organisation could have had a hand in the murder of ‘Hassan Ali’ a Judge of the Supreme Criminal Court of Iraq. Judge Hassan Ali had earlier 
given the order for the arrest of the gang leaders and some other members of this organisation.
In early July, Hassan Ali had issued the order for the arrest of Massoud Rajavi the gang leader of the Mojahedin Khalq Organisation (aka MKO, MEK, NCRI, PMOI, Rajavi cult, Saddam’s private army), and about 40 other members. He had asked Interpol to place Rajavi on the international list of wanted criminals.
Maryam Rajavi and Amir Kazemi who are believed to be the political and military heads of the organisation are among the list of people with international arrest warrants. According to unverified information, Rajavi, his wife and his deputy Kazemi are now living in France.
According to the report, Hassan Ali was killed in front of his house in Baghdad in a terrorist operation carried out last Wednesday.
Hossein Ali, a member of Iraqi parliament and expert in terrorist organisations operating in the region said the murder of the Judge of the Supreme Criminal Court was carried out only a week after he issued the arrest warrants against the leaders of this group. The organisation should be investigated and some of the individuals have to be interrogated.
It is worth mentioning that the Mojahedin Khalq started in 1965 as a group opposing the regime of the Shah. Their aim was to create a Socialist Islamic Republic in Iran. The Mojahedin Khalq welcomed the Islamic revolution in 1979 but soon moved into opposition and moved back to the same terrorist activities they had started in the early 70s.
Facing the effective security forces in Iran, the leaders of the Mojahedin Khalq were forced to go to France and from there in 1986 to Iraq. In Iraq, the Mojahedin Khalq organised an armed group, well equipped with armoured vehicle and helicopters. They frequently attacked Iran from Iraq.
After the defeat of Iraq in the war, Iran became the only remaining enemy of the Americans and British in the region. This is when the Mojahedin were used. The Americans did not dismantle their camp in Iraq even though it managed to disarm them.
It was an obvious calculation. In the case that the situation would deteriorate, the Americans were planning to use the Mojahedin Khalq in their fight against Tehran. From the other side, they had officially (ostensibly) placed the Mojahedin Khalq Organisation on their terrorism list for their cooperation with Saddam Hussein. European countries had also followed the same line.
In this way, America and its European partners kept the Mojahedin Khalq for a rainy day and made sure that they have an open hand. It would be the case that either they would be used against Iran or would be handed over to Iran (for a price).
With the passage of time it became clear that the first choice has been taken (by Americans). Until 2005 Neo conservatives in America and some British politicians who were following American Neo conservatives for regime change in Iran supported the Mojahedin Khalq. Then in 2006 a European court decided that keeping the Mojahedin in the list of terrorist organisations and freezing their bank accounts was not right. In 2007 Britain was the first country which, according to a court ruling, took the MKO off its list of terrorist organisations. The European Union followed Britain shortly and in 2008 a European court ruled that keeping MKO on the list was not just.