In June 1949 Czepuck was released from imprisonment not in his former home district but in the Soviet occupation zone which was in the process of mutating into the German Democratic Republic.
He lost no time in joining the new country's newly formed ruling SED (Socialist Unity Party of Germany/Sozialistische Einheitspartei Deutschlands).
[4] However, at the start of October 1971[5] he lost the position on account of conflicts with Joachim Herrmann, the editor in chief.
During the twenty-first century he remained a member of "Die Linke" / "The Left" which was in effect a further developed and repackaged version of the PDS that was relaunched in 2007.
He was also a founding member of the Society for good neighbourly relations between German and Poland (Gesellschaft für gute Nachbarschaft mit Polen).