At the same time, he joined the Sturmabteilung (SA), the Nazi paramilitary unit where he served on the staff of SA-Gruppe Berlin-Brandenburg with the rank of SA-Sturmführer.
At the beginning of 1932, Taubert became head of the legal department of Gau Berlin and the anti-Bolshevism advisor to Joseph Goebbels, the Gauleiter.
After the Second World War he changed his name to Erwin Kohl and worked for $3,000 a month for the German Christian Democratic Union in West Germany, providing material against more radical Marxists.
Taubert was a member of the Naumann Circle, which aimed to infiltrate the Free Democratic Party, and eventually restore Nazism in Germany.
Taubert maintained a liaison office in Bonn, which worked for NATO on matters of psychological defense (PSV).