Answer: A group of people composed mainly of socialists, democrats and Catholics were found to be openly supporting the Weimar republic and were considered the November Criminals. The November criminals were the group of people who were thought to be responsible for signing the treaty of Versailles.
This socialist group of November criminals were under the constant target of the nationalists. Many members of the November criminals went on to become the Weimar Republic leader for developing German society after the war. The treaty of Versailles was actually accepted and signed by the Weimar republic and hence brought into consideration that the November criminals belonged to the Weimar Republic.