Abstract
This article is devoted to the problem of assessing the admissibility and reliability of an expert’s opinion in the context of criminal proceedings. The expert’s opinion, as an important evidence in criminal cases, is an integral part of the judicial process. However, its admissibility and reliability play a crucial role in the formation of court decisions. The purpose of this study is to conduct a comprehensive assessment of the admissibility and reliability of the expert’s opinion in criminal proceedings. The article discusses the main aspects of assessing the admissibility of expert opinions, including the issues of expert qualification, his independence, methodology of work, as well as compliance with professional standards. The importance of strict procedure and supervision of experts to ensure the objectivity of conclusions is noted.