Busse joined the National Democratic Party of Germany (NPD) in 1964 and soon became one of the party's leading members in North Rhine-Westphalia.
In June 1971 he joined with other radicals in setting up the Partei der Arbeit/Deutsche Sozialisten, which re-emerged in 1975 as Volkssozialistische Bewegung Deutschlands (VSBD) [REF].