Originally, the alcohol ban, which applied on the premises from 10 pm to 6 am, was supposed to apply until September 11. The district wanted to prevent littering, noise pollution and wild urination inside the parks and thus protect the green spaces. Before the ban, there had been riots and police intervention in the parks this year and the previous year. For example, the police had cleared James-Simon-Park in mid-July when about 250 people had gathered there to party. The police had described the atmosphere as heated and loud.