Crime and hatred have been a permanent part of mass events organized in Poland. The situation is the most difficult in the case of football matches, especially at the national level. Despite legal changes and many measures adopted by sports clubs, the police and other institutions, not only has the situation not changed but there are symptoms of its deterioration. It is extremely worry- ing that these informal groups form structures that operate following the principles characteris- tic of organized crime. The subject of study in this article are the phenomena of crime and hatred occurring at mass events organized in Poland; its purpose is to identify the causes and present conclusions regarding necessary actions, based on an analysis of st...