CEP Senior Director Dr. Hans-Jakob Schindler writes chapter for working paper on UN sanctions: "Hans-Jakob Schindler depicts challenging interfaces in monitoring and enforcing UN counter-terrorism sanctions starting out from the work of the ISIL, al-Qaida and Taliban Monitoring Team. The Team advising two sanctions committees works in a field that has enjoyed relatively broad political consensus among the members of the UN Security Council. The author particularly addresses regularly recurring challenges at four vertical and horizontal interfaces the Team is managing. These not only include the management of the relationship between member states and the Committee, but those relating to information flows to and from the Team to intermediaries, such as the FATF or private sector stakeholders. Overall, he argues that the process of sanctions design and development should be understood as a complex network of information flows and negotiations rather than a hierarchical process."