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Swiss Intelligence Service Publishes Declassified Josef Mengele Dossier
By Drooid · · How we work
Swiss Intelligence Service Publishes Mengele Dossier Online
On Thursday, the Federal Intelligence Service (FIS) uploaded a digital version of a dossier on Josef Mengele, the Auschwitz physician known as the “Angel of Death,” to its website. The file, held in the Federal Archives in Bern, remains partially redacted; the agency said the redactions protect the personal data of current and former federal employees, source-protection information, and private individuals, while public figures are left unmasked. The agency emphasized that “as little as possible” was removed.
Legal Background and Archival Restrictions
The dossier was originally compiled by the Federal Prosecutor’s Police Service, the predecessor of the intelligence service, and transferred to the archives in 2001. Under Swiss archival law, the material was slated to stay classified until the end of 2071. A denial of access issued in February 2026 was challenged by historian Gérard Wettstein, leading to a court-ordered review. A government decision dated December 7, 2001 instructed authorities to adopt a more liberal access policy, and on September 8 a new decision permitted publication. The FIS later acknowledged that it had mistakenly assumed the protection period remained in force.
Contents of the Declassified File
The dossier contains numerous newspaper clippings that focus on longstanding suspicions that Mengele stayed in Switzerland on several occasions, including a reported 1961 visit to the Kloten area near Zurich Airport after West Germany issued an arrest warrant. Police reports—some redacted—detail entry bans, arrest warrants, and investigations of individuals who may have sheltered the war criminal. The file also includes material reviewed previously by the Independent Commission of Experts on Switzerland and the Second World War (the “Bergier Commission”).
Official Statements and Historian Reactions
The FIS stated that the released material is readable as a whole and that the overall course of events can be understood from it. Historian Gérard Wettstein, who financed the legal challenge, welcomed the publication but warned that remaining redactions “feed conspiracy theories” and said he may appeal for access to the original, unredacted documents. Swiss newspapers described the digital release as “scandalous,” arguing it could damage the country’s reputation.
Conflicting Reports & Gaps
Sources differ on the dossier’s length: one report describes it as a 200-page file, while another cites a 217-page compilation. Neither source provides the complete original document, leaving gaps in verification of specific entries. The extent of redactions and the full content of police investigations therefore remain partially unknown.
