Since 1999 it has been illegal to buy sex in Sweden, punishable with up to 6 month in jail. Untill recently, the police has been discreet about it, calling the accused men at work, but now the ploice is sending letters to the private address of the accused.
http://jp.dk/udland/europa/article991552.ece
http://jp.dk/udland/europa/article991552.ece