疑罪从无原则不仅包含了在被告人有罪无罪难以确定时按无罪处理的含义,而且包含了在被告人重罪与轻罪之间难以确定时按轻罪处理的衍生含义,司法实践中必须全面理解和准确适用疑罪从无原则. The principle of the no-no-suspect contains not only the implication of innocence when the defendant’s guiltlessness is difficult to determine, but also the derivative meaning of misdemeanor in the case that the defendant’s felony and misdemeanor are difficult to determine. In judicial practice It is necessary to fully understand and accurately apply the principle of no doubt of doubt.