The article is devoted to the study of topical issues of proof the collection, verification and evaluation of evidence, as well as the subjects of proof in criminal proceedings. Evidence is central to criminal proceedings. Special attention should be paid to one of the most important elements of the proof process the assessment of evidence carried out by the subjects of proof, since in procedural terms, it is the assessment of evidence that directly affects the formation of the court's internal conviction about the proof or lack of proof of the accusatory thesis put forward by the investigator and supported by the prosecutor. According to the authors, the subjects of proof in criminal proceedings are only those participants in the criminal process who have the right to independently collect, verify and evaluate evidence. All other participants in criminal proceedings, despite their procedural significance, who are not endowed with at least one of the listed rights, do not belong to the subjects of proof.