Methodological problems in the study of speech activity products in forensic linguistic expertise

The article analyzes the main methodological problems of forensic linguistic expertise. The author substantiates the thesis about the ineffectiveness of the methods used to study the product of speech activity - the text, which currently dominate in linguistic expertise. Despite the many positive trends in the development of forensic linguistic expertise (the development of individual methodological recommendations within specific categories of cases, the expansion of the boundaries of the use of linguistic knowledge in the investigation, inquiry, court, etc. the descriptive rather than analytical level of linguistic expertise remains predominant. The relevance of the study is due to the activation of criminogenic Internet communication, in which defamatory, extremist and other aggressive texts are implemented. The article focuses on polycode texts, on the example of which the methodology of their analysis based on a descriptive linguistic approach is verified.