[4] Massing saw Eisler on his return to the Soviet Union: "Gerhart… was involved in the Wittdorf affair, a political maneuver to dethrone Ernst Thälmann, who was supported by Stalin….

Gerhart was, after a time, in complete isolation in Moscow, forbidden to read German papers in order to get Germany out of his system, and then sent as Comintern representative to China where, according to many reports, he achieved great success through his ruthless policy.

[6] Eisler was charged in two trials in 1947 first with refusing to answer the HUAC, then of violating U.S. laws by misrepresenting his Communist Party affiliation on his immigration application.

[7] When his last legal appeal failed, he jumped bail and secretly boarded the Polish liner MS Batory bound for London in early May 1949.

In the course of the establishment of the SED rule, he informed his colleagues at the party executive committee meeting on October 4, 1949 that, as Marxists, they must know: “If we found a government, we will never give it up again, neither through elections nor through others Methods".

There he was one of the most innovative leading figures in the GDR media apparatus: for example, he set up the DT 64 youth studio, which he also protected from attacks from the party, during his time.

The MI5 summary states:Eisler, who was supposed by many to be the covert leader and director of the Communist Party in America during and after the Second World War, became the centre of a diplomatic incident in 1949 when, having stowed away on a Polish ship out of New York, he was forcibly removed and arrested in Southampton.

The earliest traces of Eisler in the file (KV 2/2773, 1936–1949) date from 1936, when Comintern efforts to secure a false American passport in the name of Edwards were reported.