http://www.spiegel.de/international/germany/0,1518,672803,00.html'Racial Defilement'
As a result of her research, Schwarze discovered a group of victims of the Nazi regime that has been neglected to this day. It consists of the women and girls who government officials accused of having sexual relations with foreign forced laborers. Some of the romantic relationships did exist, while others were made up, but the punishment was almost always extreme. The women were sent to concentration camps by the thousands, while the men were usually executed.
"Fellow Germans who engage in sexual relations with male or female civil workers of the Polish nationality, commit other immoral acts or engage in love affairs shall be arrested immediately," Heinrich Himmler, the head of the SS, ordered in 1940.
The crime the Nazi lawyers had constructed was called "racial defilement." At first, it only applied to relationships between Jews and non-Jews, but the racist construct was later expanded to include Slavs.
Prisoners of war and deported civilians were forced to work in factories and in fields, where they came into contact with local residents, many of them women. The men were fighting on the front. But informers prepared to denounce wrongdoers were everywhere -- neighbors, co-workers and teachers -- contributing to a hellish atmosphere of racial hatred and bigotry.