This book was co-authored by two prominent researchers in South Sudan/Jonglei State-James Nyok Deng & John Kon Kelei. The aim of the research was to compare the way in which the courts applies customary laws in both statutory court and bench court in Jonglei State. The two authors works fulltime as Law Lecturers, faculty of law, at Dr. John Garang Memorial University of Science and Technology in South Sudan.