Switzerland opens secret Mengele file after decades. It was meant to remain sealed until 2071
29.06.2026 07:57
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The Swiss Federal Intelligence Service (NDB) will release the dossier on Josef Mengele, the notorious "angel of death" from Auschwitz. With this, the agency has, after years, yielded to historians seeking to determine whether the Nazi doctor was present in Switzerland during the 1950s and 1960s — even after an international arrest warrant was issued for him in 1959. El País ↗
Key actors — tap for context
Josef Mengele
SS doctor at the Auschwitz-Birkenau concentration camp, nicknamed the "angel of death" for his sadistic experiments on prisoners.
Why here: The dossier concerns his possible presence in Switzerland.
Swiss historian who used crowdfunding to challenge the archive's classification in court.
Why here: His appeal triggered the release of the file.
Bergier Commission
Expert commission of the Swiss government (1996–2002) tasked with examining Switzerland's role during the Second World War.
Why here: The decision on a "liberal approach" to its materials opened the Mengele file.
Under the original decision, the file was to remain classified until 2071. The turnaround came after Gérard Wettstein raised nearly 18,000 francs through crowdfunding and challenged the February rejection in court. The agency ultimately acknowledged that the documents fall under the 2001 decision on a "liberal approach" to the Bergier Commission's materials. Access, however, will be granted "under conditions that have yet to be specified." Times of Israel ↗
After the war, Mengele fled to Argentina and died in Brazil in 1979 without ever being convicted. It is documented that in 1956 he went skiing with his son in Engelberg. Five years later, his wife rented a monitored apartment in Kloten near Zurich Airport. Whether he himself was there was never confirmed. Wettstein fears that the file will ultimately turn out to be "more black than transparent." El País ↗
Посольство Аргентины, 72 с1, улица Большая Ордынка, район Якиманка, Москва, Центральный федеральный округ, 119017, Россия
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Location: Auschwitz-birkenau
Niemiecki nazistowski obóz koncentracyjny i zagłady Auschwitz II-Birkenau, Brzezinka, gmina Oświęcim, powiat oświęcimski, województwo małopolskie, 43-155, Polska
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