The NSfK archives aredigitally available at the National Archives of Norway.
Since the establishment of the Nordic Research Council for Criminology in 1962 (formerly the Scandinavian Research Council for Criminology) after each national period, the documentation has been sent to be stored at the National Archives of Norway. Most of the archive is open access and available to the public.
The NSfK archives are accessible here (digitalarkivet.no).
To access the archives, you must first register as a user of the National Archives (digitalarkivet.no).