In 1941, Heise joined the SS Women's Auxiliary and, on 21 November 1941, arrived at Ravensbrück for training. In October 1942, she was one of several women, including Hermine Braunsteiner, to be sent to KZ Majdanek camp near Lublin as an Aufseherin.[2] The gas chambers began operation there in September 1942,[3] with more than 79,000 people exterminated during its 34 months of operation.[4]
Heise worked at the camp until January 1944 when she accompanied a transport of women to Kraków-Płaszów concentration camp on the outskirts of Kraków. She remained there until she was assigned to guard the death march to KZ Auschwitz-Birkenau west, ahead of the Soviet offensive. From there she guarded a prisoner evacuation train in October 1944 to the Neuengamme concentration camp near Hamburg, Germany. In November 1944, Heise was promoted to Oberaufseherin and sent to Obernheide,[5] the subcamp of KZ Neuengamme (Lagerbordell operated there since spring of 1944 with full staff).[6]
At Bremen-Obernheide, she and SS-Hauptscharführer Johann Hille,[7] commanded 500 Hungarian and 300 Polish women prisoners with a very high rate of deaths, regular beatings and denial of rations.[8][9] Heise fled Obernheide in April 1945 with the evacuation of surviving women prisoners to Bergen-Belsen concentration camp.[8]
Heise was later captured by British soldiers and interrogated. She was placed on trial for war crimes. On 22 May 1946 a British court handed her a sentence of 15 years imprisonment for her already confirmed war crimes. She was released from prison in the early 1950s.[9] Heise was last reported alive in Hamburg in 1970.[9]
^"KZ Aufseherinnen". Majdanek Liste. Women in the Reich. 3 April 2005. Retrieved 1 April 2013. See: index or articles ("Personenregister"). Oldenburger OnlineZeitschriftenBibliothek.
^Mario Förster, Michaela Weiß (2009). "Prozesse gegen NS-Täter nach 1945 am Beispiel von Johann Hille und Gertrud Heise"(PDF file, direct download 163 KB). Förderprogramm Demokratisch Handeln. Georg-August-Universität Göttingen. Retrieved 1 April 2013. Translation of title: Trials of Nazi criminals after 1945 by the example of John Hille and Gertrud Heise.
^Silke Schäfer (6 February 2002). "Zum Selbstverständnis von Frauen im Konzentrationslager"(PDF). Lagerbordelle und SS-Bordelle (in German). Fakultät I Geisteswissenschaften der Technischen Universität Berlin. p. 72. Archived from the original(PDF) on 11 July 2007. Retrieved 1 April 2013. Translation of title: Accounts by women of concentration camps.
^Overview (2013). "Bremen-Obernheide". History. KZ-Gedenkstätte Neuengamme. Archived from the original on 2 January 2014. Retrieved 1 April 2013.