Kerstin Kaiser (born 16 July 1960) is a German politician for the left wing party, Die Linke who worked as a teacher at the party school of the Socialist Unity Party of Germany and  became an informer for the Stasi  under the code name "Kathrin".
Kerstin Kaiser (born 16 July 1960) is a German politician for the left wing party, Die Linke who worked as a teacher at the party school of the Socialist Unity Party of Germany and  became an informer for the Stasi  under the code name "Kathrin".