Oct. 14 (UPI) -- A former officer of the East German secret police was found guilty by a Berlin court of murder in the 1978 shooting death of a Polish citizen attempting to cross into West Berlin. In a ruling believed to be the first of its kind against East Germany's secret police, of Stasi, could open up a wave of similar cases dating back to when the city and the country were physically divided between the Soviet Union and the West. Advertisement The officer, identified as Martin Naumann, 80,