This paper discusses the theory about the due process of law. Due process of law as an important constitutional principle of common law, in its history of legal development which occupies an important position. Britain and the United States as the birthplace of the principles of due process, the paper describes the design of the system will be detailed in both countries about the due process of law. Due process of the law carries a significant value, which plays an important role in protecting the rights of citizens against arbitrary government. While the program is divided into two categories, procedural due process and substantive due process of law. Due process gone from a substantive procedural safeguards to protect the process. Meaning of the content of procedural due process and substantive due process very different from each other but there are intrinsically linked. This article focuses on the comparison between the two contact in the development process, so that both the two aspects of due process as closely linked to the due process of law and thus have a comprehensive understanding. |