| As an important element of government administration procedure, administrative investigation has significant effect on the rights and benefits of the relative. However, the current research of this issue is mainly focused on the pandect of administrative law, thus making it over abstract and lacking reality instruction. The purpose of this paper is to make theoretical preparation for the formal establishment of administrative investigation system in our country through the analysis and discuss of its basic theory and relevant legal issues, by means of in-depth research on police administrative investigation and the revealing of existing problems in legislation and practice.Starting with the analysis of the current situation of the research on administrative investigation theory, this paper analyzes the legal norms of police administrative investigation. Through the retrospect and reflection on real time cases, this paper gives an overall review on the possible flaw on the investigation procedure of police department. In the aspect of achieving reasonable and effective legal control, this paper investigates the principle, the method, the procedure and the legal remedy respectively, and put forward some assumptions on the construction of administrative investigation system. |