Doctrinal research, also known as traditional legal research, is primarily concerned with the study, interpretation, and analysis of legal rules, principles, and doctrines. It focuses on what the law is rather than what the law ought to be. In criminal justice research and advocacy, doctrinal research plays a significant role because legal practitioners, researchers, and activists rely on authoritative legal materials to understand existing legal frameworks and to argue for justice within those frameworks. The foundation of doctrinal research lies in its sources, which are broadly classified into primary and secondary sources. Among these, primary sources hold the most important position because they constitute the original and authoritative statements of law. Primary sources of doctrinal research refer to those materials that contain the law itself. They are the official and legally binding sources from which legal rules originate. These sources are created by recognized law-making authorities such as legislatures, courts, and administrative bodies. In the field of criminal justice research and advocacy, primary sources provide the legal basis for understanding rights, duties, liabilities, and procedures related to crime and punishment. The first and most important primary source of doctrinal research is legislation. Legislation refers to laws enacted by a competent legislative authority such as Parliament or State Legislatures. Statutes, Acts, Codes, Rules, and Regulations form the backbone of the legal system. In criminal justice, enactments like the Indian Penal Code, the Code of Criminal Procedure, and the Indian Evidence Act are classic examples of primary legal sources. These laws define criminal offenses, prescribe punishments, and lay down procedures for investigation, trial, and adjudication. Researchers engaged in doctrinal study must analyze the language, scope, and applicability of such statutes. Legislative materials are authoritative because they represent the direct will