An-Najah National University
Doebbler has taught law at London School of Economics, Khartoum University, Pristina University, University of Tuzla, The American University in Cairo, Webster University Geneva, and Tashkent State Institute of Law. From 2004 to 2010 Doebbler was a professor of law at An-Najah National University. In March 2010, he was denied entry to Palestine by the Israeli authorities and has not been able to return to An-Najah National University. He is currently Research Professor Law at the University of Makeni in Sierra Leone where he teaches international law, human rights law, criminal law, and jurisprudence. He is also a visiting professor of law in the Department of International Relations at Webster University in Geneva, Switzerland.