'Dr. Ismail shows how Islamic law and international diplomatic law are mutually reinforcing and largely complementary. Where there is divergence, there can be harmonization: the nature of his project is conversation, not conflict. Dr. Ismail has produced a rigorous work that blends theoretical inquiry and examples from Muslim State practice. This is an important contribution to the existing scholarship that, it is hoped, will enhance compliance in the area of diplomatic privileges and immunities.' - Robert P. Barnidge, Jr., Lecturer and Coordinator of International Relations, Department of History, Politics, and International Relations, Webster University, USA