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(CNN) - A team of internationally renowned war crimes prosecutors and forensic experts has found "direct evidence" of "systematic torture and killing" by the Syrian President Bashar al-Assad's regime, the lawyers on the team say in a new report.
Their report, based on thousands of photographs of dead bodies of alleged detainees killed in Syrian government custody, would stand up in an international criminal tribunal, the group says.
CNN's "Amanpour" was given the report in a joint exclusive with The Guardian newspaper.