 Since 2008, the IPDC has encouraged Member States to submit information, on a voluntary basis, on the status of the judicial inquiries conducted on each of the killings condemned by UNESCO, for inclusion in a public report submitted every two years to the IPDC Council by the Director-General.The IPDC's 2016 Report is summarized in the "Time to break the cycle of violence against journalists" publication which highlights key findings, provides analysis of the killings, and of Member States responses.Data on killings is gathered and verified for the Director-General’s report and World Trends from multiple sources, including NGOs, UNESCO Field Offices and UNESCO Permanent Delegations.