To scientifically construct the relation of the two parts, not only can arrange the investigation and realize smoothly the national pursuing power, finally effectively controlling the crime, but also can prevent the investigation power's ill-use in order to protect civil rights from illegal infringements. 科学地构建检警关系,不仅有助于理顺检警关系,顺利实现国家追诉权,最终达到有效控制犯罪的目的,而且还可以防止侦查权的滥用,保证公民权利不受非法侵犯。