On 7 September 2009, the International Co-Prosecutor filed two Introductory Submissions, requesting the Co- Investigating Judges to initiate an investigation concerning five suspected persons. These two submissions have been divided into what is known as Case files 003 and 004.
On 3 March 2015, the International Co-Investigating Judge charged Im Chaem in absentia in Case 004. On 5 February 2016, the case was severed creating case file 004/01.
On 22 February 2017, the Co-Investigating Judges dismissed the case against Im Chaem, finding she was not subject to the personal jurisdiction of the ECCC which means she was neither a senior leader nor otherwise one of the most responsible officials of the Khmer Rouge regime. On 20 July 2017, the International Co-Prosecutor filed the notice of Appeal against the Co-Investigating Judges’ closing order to the Pre-Trial Chamber.
On 11 and 12 December 2017, the Pre-Trial Chamber held hearings in case 004/01 to hear the arguments of the parties before it issues its decision on the appeal.
Please see the link for information about the charges against Im Chaem.