The Ultras are part of the german football culture for more than 20 years now. Although they are fanatic supporters on the one hand, they also fighting with each other and also with the police on the other hand. This thesis is about the Ultras and their culture in general. Its focussed on the conflicts, especially with the police. The general image of the Ultras is also discussed within this thesis. In the end, the author is trying to give the reader some kind of forecast. Persons who might be interested in reading this thesis might be: football fans, journalists, police men, as well as associates.