It isn't what was going on, it's that the brothel owners were not paying the German equivalent of FICA for sex workers they had tried to pass off as independent contractors. So 900 cops swoop down on the mega brothel called Artemus.
And over here we are debating whether you can have a mimosa with brunch on a Sunday morning in Sackets. New York values are not as permissive as Senator Cruz would have you believe.
Germany trafficking: Mass police raid on Berlin mega-brothel - BBC News