This article examines the factual basis underlying the judgment of objective attribution in criminal law. The consummation of a result-oriented crime requires not only the occurrence of a proscribed result following an act but also a causal nexus between the two. The“base of judgment”problem concerns which specific facts should serve as the material for determining this objective attribution. While this issue remains relatively under-explored in Taiwanese criminal law academia, it has long been a subject of intense debate in Japanese criminal law academia. Discussions regarding the“base of judgment”typically arise in cases involving victims with idiosyncratic physical conditions or intervening extraordinary circumstances, scenarios that are likewise prevalent in Taiwanese judicial practice.<br>Recently, the necessity of the“base of judgment“theory has faced increasing scrutiny within Japanese criminal law academia. This article addresses this scholarly debate by elucidating the significance and function of the theory. By affirming the continued necessity of the“base of judgment”in evaluating the inherent danger of an act, this study refines the theory of adequate causation and provides a conceptual framework for the subsequent construction of the“adequacy in a narrow sense”(Adäquanz im engeren Sinne) theory.