面对一张高难度伪装的文字检材和嫌疑人的字迹样本，他从容地审视和对比着其共同点、差异点等特征，………终于，他吐出了一个宝贵的字：“是。”在场的民警面露喜色，又一起疑难案件破了！人被带来了，经审讯，犯罪嫌疑人很快认了罪，并且不无惋惜地说；“早就听说公安局有个 In the face of a handwritten sample of highly disguised texts and suspects, he conscientiously examined and compared features such as their common ground and differences, and so on. Finally, he uttered a precious word: “Yes. The presence of the police face exposed happy, and another difficult case broke! People were brought, after interrogation, the suspect quickly pleaded guilty, and said without regret; ”I have heard that the Public Security Bureau has a