行政调查制度研究在我国不够系统和规范,特别是在行政调查的内涵和性质方面,学者间存在较大争议。不同的行政调查理论对行政调查的内涵、边界及法律规制的界定有很大差异。行政调查是行政程序中的一般性制度,并对行政调查的边界及法律规制进行了相应的研究。 The research on administrative investigation system is not systematic and standardized in our country, especially in the content and nature of administrative investigation. There is much controversy among scholars. Different theories of administrative investigation have great differences on the connotation, boundary and legal regulation of administrative investigation. Administrative investigation is a general system in the administrative procedure, and carries on the corresponding research to the boundary and the legal regulation of the administrative investigation.