With fellow Swedish diplomat Per Anger, he issued "protective passports" (German: Schutz-Pass), which identified the bearers as Swedish subjects awaiting repatriation and thus prevented their deportation.
Sammen med en anden svensk diplomat, Per Anger, udstedte han "beskyttelsespas" (tysk : Schutz-Pass), der identificerede indehaveren som svensk undersåt, der afventede tilbagesendelse til hjemlandet, og forhindrede derved deportation.