“劣币驱逐良币”是一种经济现象,然而它的形成过程却可反映刑讯逼供的心理成因。出现刑讯逼供这一“劣币”,是多种原因造成的,而“驱逐”这一“劣币”,则需要建立非法证据排除规则、沉默权、有效的讯问监控手段,以及修改刑法规定等一整套“良币”。 The “bad money driven by good money” is an economic phenomenon, however, its formation process can reflect the psychological causes of torture. The emergence of “bad money” by torture is caused by a variety of reasons, and “deportation” of this “bad money” requires the establishment of rules for the exclusion of illegal evidence, the right to silence, effective means of interrogation and monitoring, and the revision of criminal law provisions A set of “good money”.