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.
The International Co-Investigating Judge charged Ao An in Case 004 on 27 March 2015 and on 14 March 2016 he expanded the charges. On 16 December 2016, the Co-Investigating Judges concluded the judicial investigation against Ao An and the case was severed creating case file 004/02. The severance was ordered because the charged person has the right to be informed of the decision on the charges brought against him without undue delay, and in order to issue the Closing Order in a reasonable time according to the Internal Rules 67 and 21 (4) whether it be a dismissal order or indictment.
Please see the link for information about charges against Ao An