
In the procedural law, the legislator lists the possibility of conducting an evidentiary act in the form of an experiment and the ways of documenting it. A trial experiment is an activity in which a trial authority performs an experiment or reconstructs the course of events or fragments thereof that are the subject of the investigation in order to verify circumstances that are relevant to the case. Many times a trial experiment is a complicated and complex activity in terms of process and forensic science. Accordingly, the article presents in detail the problems of the correct performance of this activity, the author leaned, among other things, on the issue of the definition of the experiment, the forms of this activity and the purpose and conditions of its performance. He discussed the legal prerequisites for implementing the experiment, as well as its characteristics.