An excellent and full source of information is Bundeszentrale für politische Bildung – here is an article on this subject, Amnestie von NS-Tätern – Das “Dreher-Gesetz” von 1968.
An article by Richard A. Fuchs, Germany’s Justice Ministry and its Nazi past.
This refers to the Rosenburg files, the 2016 result of an investigation into the change of law initiated by Sabine Leutheusser-Schnarrenberger in 2012, the year after Der Fall Collini was published.

Translation difficulties

Comments on the English translation of the novel follow in the next post.