案件言语识别是运用语言学的知识、原理和方法,通过对作案人语言特点的分析,判断作案人的身份特征和活动区域,为侦查破案提供线索和方向的一门侦查技术。案件的书面语言,一般都会反映出书写人的方言特征和用字遣词的习惯,这对于判断作案人所在地区以及有关的特征,具有十分重要 Case Speech Recognition is the use of linguistic knowledge, principles and methods, through the analysis of the perpetrator’s language characteristics to determine the identity of the perpetrator and the area of ​​activity, to provide clues and direction for the investigation and detection of a detection technology. The written language of a case generally reflects the writer’s dialectal characteristics and the habit of using words to send a word, which is very important for judging the location of the perpetrator and the relevant characteristics