In the course of investigative and later judicial proceedings, first the Allied, then also the Italian and finally, from the 1960s onwards, the judicial authorities of the Federal Republic of Germany collected and compiled a wealth of documents on war crimes in occupied Italy. These documents can be viewed today in archives in the United States, Great Britain, Germany and Italy.
With regard to this material, some source-critical notes are necessary: for example, it should be noted that such files are usually early statements of the facts. Consulting additional sources is a requirement for verification. Only the results of completed trials can be considered conclusive. But even here, historiographical research continues afterwards: The discovery of new documents can result in additions, new elements of evaluation or even changes to the trial results.