测谎结论与证据的“有限采用规则”

识别谎言是司法人员的基本职能；人类在数千年的司法实践中一直在探索识别谎言的有效方法。测谎仪是一种科学的心理测试仪器，但是其结论并非百分之百的准确。测谎技术是犯罪侦查技术的组成部分，也是提高侦查科学化程度的途径之一。测谎技术可以在犯罪侦查中发挥重要的作用，这是毫无疑问的。但是，测谎结论能否成为诉讼中的证据，这是另外一个问题。我们应该给测谎结论以正确定位：它就是一种普普通通的证据，而且是“有限采用＂的证据。

Lie-detector Conclusion and Limited Adoption Principle of Evidences

Detection of lies is a basic function of judicial officers. In the history of thousands years, people have been seeking for effective methods to detect lies. Polygraph is a scientific instrument for psychological tests, but its conclusion is not 100% accurate. Polygraph testing is a part of criminal investigation technology, and a way to promote the degree of scientific investigation. It is beyond doubt that polygraph testing will play an important role in criminal investigation. However, it is another issue whether a conclusion of polygraph test will be admitted in trials. The conclusion of polygraph test is just a type of common evidence, and an evidence of limited admissibility.