Switzerland’s Federal Intelligence Service has announced its intention to unseal classified files pertaining to Josef Mengele, the infamous Nazi war criminal known as the “Angel of Death.” While the exact timeline for the release remains unspecified, this decision follows decades of public and historical inquiry into Mengele’s potential activities within Switzerland after World War II.

Historians have long sought access to these documents, which have been sealed for national security reasons and the protection of extended family members. Mengele, a physician in the Waffen SS, was stationed at the Auschwitz extermination camp, where he was responsible for selecting victims for the gas chambers and conducting horrific medical experiments on prisoners, particularly children and twins. Following the war, Mengele evaded capture by fleeing to South America, reportedly utilizing Red Cross travel documents issued in Genoa, Italy.

While Mengele officially resided in South America after 1949, his connection to Switzerland has been a subject of persistent speculation. It is known that he visited the Swiss Alps for a skiing holiday with his son in 1956. However, historians like Regula Bochsler have investigated the possibility of his return to Switzerland in 1961, after an international arrest warrant had been issued. Evidence gathered by Bochsler, including surveillance of an apartment rented by Mengele’s wife in Zurich and intelligence warnings from Austrian authorities, suggests a potential presence. Despite this, Swiss authorities previously denied access to federal archives, citing reasons that fueled further conspiracy theories and demands for transparency.

The recent shift in policy was prompted by a legal challenge brought forth by historian Gérard Wettstein, who argued that the continued sealing of the files until 2071 was counterproductive and encouraged speculation. Wettstein’s crowdfunding campaign to finance the legal battle reportedly garnered significant support. The Federal Intelligence Service’s statement indicates that access will be granted “subject to conditions and requirements yet to be defined,” leaving some concerned about potential redactions that could obscure crucial details, similar to past experiences with other sensitive historical files. The eventual release of these documents is anticipated to shed more light on Switzerland’s wartime past and its handling of sensitive historical information, rather than solely on Mengele’s movements.