The third category was formed by various auxiliary units , including detachments of the `` Bahnschutz '' ( rail guard ) , `` Werkschutz '' ( factory guard ) , `` Sonderdienst '' and `` Sonderabteilungen '' ( military Nazi party units ) .
The third category was formed by auxiliary units , including detachments of the `` Bahnschutz '' ( rail guard ) , `` Werkschutz '' ( factory guard ) , `` Sonderdienst '' and `` Sonderabteilungen '' ( military Nazi party units ) .