The author analyzes Article 254 of the Penal Code, which criminalizes active participation in a gathering whose participants commit an attack on a person or property against the background of a demonstration, demonstration, and the regulations of the Law on Assemblies, including the provisions on spontaneous assembly. The author points out the differences between legal assemblies provided for in the Law on Assemblies and the gathering criminalized by Article 254 of the Criminal Code. The article
also describes, based on court records, exemplary cases of crimes qualified by Article 254 of the Criminal Code