Abstract
The abolition of death penalty is one commonplace issue over global jurisdictions. Nevertheless, it is also true that a surfeit of research has been dealt either in any specific way of legal research or general method of social science. This tends to create a track of practice that they approach the issue in its own national standard of research or discrete logic and narrative. The author proposes an orthodox of legal research by exemplifying the issue of death penalty. By demonstrating a process of legal research in exemplary concerns of death penalty between Korea and US, the article would raise several implications for the future studies; (i) the orthodox of legal research as compared with the quantitative and qualitative methods (ii) key implications of three traditional sources of legal research, i.e., secondary, primary-statute, and primary-court cases (iii) encouragement of comparative social studies between the parallel nations.