John Ciorciari's interests include international law and politics, particularly in the Global South. He is currently an Andrew Carnegie Fellow conducting research for a project on sovereignty-sharing arrangements in fragile and failing states. Many of his research projects focus on the Asia-Pacific region and examine foreign policy strategies and international institutions. He is the author of The Limits of Alignment: Southeast Asia and the Great Powers since 1975 (Georgetown, 2010), which investigates the dynamics of strategic alignments in the developing world. He is also the co-author of Hybrid Justice: The Extraordinary Chambers in the Courts of Cambodia (Michigan, 2014), which analyzes the hybrid court devised to try crimes of the Khmer Rouge regime.
He has been a National Fellow at Stanford University's Hoover Institution, and as a Shorenstein Fellow at Stanford's Asia-Pacific Research Center. From 2004-07, he served as a policy official in the U.S. Treasury Department's Office of International Affairs. Since 1999, he has been a legal advisor to the Documentation Center of Cambodia, which promotes historical memory and justice for the atrocities of the Pol Pot regime.