唐代文件检验虽处于萌芽状态，但在运用文检技术手段断案方面积累了一定的经验，有许多值得我们借鉴的地方。一唐太宗贞观年间（公元６２７－６４９年），张任河阳县县尉，有个叫吕元的人伪装仓督冯忱的字迹，书写了一份出卖公粮的文书。冯忱不承认是他写的，吕元却坚持说此文 Although the document inspection in the Tang Dynasty was in its infancy, a certain amount of experience has been accumulated in the application of literary inspection techniques to dismiss the case. There are many places worth learning from. One Taizong Zhenguan years (AD 627-649 years), Zhang Ren Heyang County Wei, a man named Lu Yuan camouflage warehouse manager Feng Chen’s handwriting, wrote a book on the sale of grain. Feng Chen did not admit that he wrote, Lu Yuan insisted that this article