 Some of his recordings have been categorized by Germany's "Bundesprüfstelle für jugendgefährdende Medien" (Federal Department for Media Harmful to Young Persons) as having content that may be harmful to young listeners.Rennicke is welcomed at concerts and demonstrations by nationalists, fascists and younger far right skinheads.Rennicke was a member of the far right Wiking-Jugend (Viking Youth) organisation until it was banned in 1994, after which he became a member of the National Democratic Party of Germany (NPD).