In accordance with EUAA COI methodology, a range of different published documentary sources have been consulted on relevant topics for this report. These include: COI reports by governments; information from civil society, advocacy groups, humanitarian organisations, and NGOs; international and NGO human rights reports; reports produced by various bodies of the United Nations; Syrian and regionally-based media; academic publications and think tank reports and specialised sources covering Syria. All information from these sources was consulted within time constraints.