Thanks to reliable video recordings, the number of cases of bullying and beatings has fallen sharply. In addition, a first case of vandalism could be clarified on the basis of the video recordings. Offenders who destroyed PC keyboards could be identified and held liable. The durability and scalability of the system was important. In addition, the low bandwidth requirements are very much appreciated. The students‘ work on the computers was at no time slowed down or influenced. Thanks to the Hemispheric technology, it was also possible to achieve greater coverage with fewer cameras.