[2] The oldest buildings that were used as part of the camp on Hovedøya were built in 1914 as recruit training grounds for Hans Majestet Kongens Garde.

The facility, renamed Lager Hovedöen, was expanded by 11 barracks with room for over 1,000 soldiers, a stockpile of explosives, and a field hospital with 100 beds.

In one of his radio broadcasts from London, Toralv Øksnevad warned, "The women who don't reject the Germans will pay a terrible price the rest of their lives.

Out on the streets gangs of men, many of whom were former resistance fighters, would assault tyskertøser, shaving their heads or tearing their clothes off and painting them with a swastika.

[5] The official stance of the Norwegian government was that the internment camps were intended to protect the women from lynchings and prevent sexually transmitted diseases from spreading to Norwegian men, but the camp was also used to detain women who had lived "scandalous lives" or "went against the general consensus" about the German occupiers, as authorities explained in a 1945 interview with VG.

When the war ended the Ministry of Health and Care Services took over the list and expanded it, adding any woman who had been accused of being a tyskertøs or detained at Hovedøya.

Aftenposten described the detainees as "the greatest danger to society," and Hovedøya was known colloquially as "de fortapte pikers øy" (English: the doomed girls' island).

During the day, the women were also put to work around the camp, given menial tasks such as raking leaves, gardening, sewing, or laying rat poison.

There were also small camps near most major Norwegian cities, such as in Tennebekk near Bergen, Selbu near Trondheim, Klekken near Hønefoss, and Skadberg near Stavanger.

And it is highly desirable that they leave our country as soon as possible.Aside from a brief period between 1950 and 1955, these women were not allowed to reapply for citizenship for almost 45 years, when the deportation was reevaluated by Stortinget in 1989.

Though the camp at Hovedøya represented a dark chapter of Norway's history, at the time its prisoners provided a useful scapegoat for Norwegians who had suffered through a harsh German occupation.

Terje A. Pedersen, a historian who focuses on the treatment of tyskertøser, wrote in his thesis: "Admitting that these relationships could be merely love affairs between normal people would disrupt the black and white image of the Germans and the war.