From a very good article by Hayder al-Khoei:
'Maliki’s new government is being supported by the Sadrist “outlaws” he fought in 2008, and yet Moqtada al-Sadr, still wanted by the Iraqi judiciary for murder, is going to play a key political role in Iraq for the next 4 years. Another senior Sadrist, Hakim al-Zamili, is implicated in the kidnapping, and likely death, of a former Da’wa colleague of Maliki but is now rubbing shoulders with the new Baghdad elite. Hadi al-Ameri, the commander of a militia whose members formed death squads out of Ministry of Interior police commandos, is now the new Transport Minister.
So why do Iraq’s new elite object to the inclusion of ex-Ba’athists in the political process when they themselves have criminals in their ranks who have Iraqi blood on their hands?
The de-Ba’athification commission was set up to bar candidates implicated in crimes committed pre-2003 but there has been no commission set up to deal with the post-2003 criminals, especially the militias and death squad members who have maintained a legacy of kidnapping, extrajudicial executions and armed insurgency. '