Luftschutzwarndienst: The Air Protection Warning Service (LSW) was a civil air protection branch, tracking raids and giving public warnings. Like the SHD , the LSW wore Air Force type uniform an green insignia. They normally wore a green cuff title on the left arm, bearing Gothic lettering (L.S.Warndienst). Sicherheits u.Hilfsdienst: The Security & Assistance Service (SHD), were conscripted civil defence squads who lived part-time in barracks, and enjoyed immunity from military call-up.