The purpose of HIPO was to assist the Gestapo as an auxiliary police unit. HIPO was organized under, and along quite similar lines to, the Gestapo. Some men were uniformed in order to be visible while others worked secretly in plain clothes. The uniformed men wore a black uniform with Danish police insignia. HIPO, like the Gestapo, had their own informers. The major difference was that most of the Gestapo were Germans working in an occupied country, while the HIPO Corps consisted entirely of Danes working for the German occupiers.
During the last winter of the war a number of HIPO members were tortured and killed by Danish resistance members. In retaliation and as a warning, the corps terrorized the civil population and blew up houses, factories, and even the Tivoli Gardens.
The Lorenzen Group, also known as section 9c, was an armed paramilitary group of Danes subordinate to the HIPO Corps.
After the war, service in the HIPO corps was one of the crimes of collaborationism that retroactively became capital offenses. Some two to three hundred HIPO members were prosecuted under these laws. About a dozen were executed between 1946 and 1950. A somewhat larger number received death sentences that were later reduced to long prison terms or parole.
