本文界定疑案的角度是逻辑和科学方法论,首先要应用假说演绎法的程式解释,其次要区分案情发现和案情论证阶段,最后指出发现和论证中的逻辑缺失。这样,从深层处划分了疑案的三类形式:无头案、断线案、悬案。 This paper defines the angle of doubt as logical and scientific methodology. Firstly, the explanation of the hypothesis deduction should be applied. The second is to distinguish between the discovery of the merits and the stage of case demonstration. Finally, the logic deficiency in discovery and argumentation is pointed out. In this way, from the depths of the division of the three types of suspect cases: no case, broken case, pending case.