In October 2014, Spyer revealed evidence of possession and use of chemical weapons, likely mustard gas, by the Islamic State in Iraq and Syria (ISIS), in northern Syria.[9][10] In April 2017, Spyer traveled to regime-controlled Syria under his British passport as part of a government-sponsored media tour. On that trip, he interviewed Syrian government ministers and was photographed with Syrian Minister of Reconciliation Ali Haidar and Minister of Information, Mohammed Tourjeman. In January 2018, Al Arabiya reported that Syrian President Bashar al-Assad fired Tourjeman for permitting Spyer, an Israeli, entry into the country.[11][12][13]