https://www.reddit.com/r/science/comments/79nzw3/dutch_cities_that_opened_legal_prostitution_zones/
origin - http://www.pipiscrew.com/?p=10839 dutch-cities-that-opened-legal-prostitution-zones-saw-reductions-in-sexual-abuse-and-rape-by-about-30-40-percent-in-the-first-two-years