Erdem leaked a number of documents from Turkish government surveillance of ISIL-members. The documents are said to show detailed information about activities and locations of ISIL-members, but also a lack of action on part of the Turkish government. Erdem has alleged a cover-up by the Turkish government, which is implicated in having poor control of the Turkish-Syrian border. Erdem also claims that sarin-gas was transported through Turkey to Syria, later used in the Ghouta chemical attack in 2013, as well as later ISIL-attacks against civilians. Erdem showed before the parliament a case where investigations leading to the arrest of 13 potential Turkish ISIL-members were made, but later inexplicably dropped. The leaks are also said to implicate that Erdogan's immediate family in his son-in-law made financial gain through oil-deals with ISIL-members.