Is Quaid-i-Azam Professor at SIPA, Columbia University. He is also a senior advisor at the Belfer Center for Science and International Affairs at the Kennedy School of Government, Harvard University and BErnard Schwartz Fellow at Asia Society in New York. Abbas has also been a visiting fellow at the Islamic Legal Studies Program at Harvard Law School and a visiting scholar at the Harvard Law School's Program on Negotiation. Prior to his academic career, Abbas served as a government official in the administrations of Prime Minister Benazir Bhutto and President Pervez Musharraf. While in the Police Service of Pakistan in the late 1990s, he served in the North-West Frontier Province (now Khyber Pukhtunkhwa).