French Ministry of Foreign Affairs

The French Ministry of Foreign Affairs appears in the account as the home of an independent codebreaking service whose work became crucial to testing military claims in the Dreyfus case. Its specialists broke a telegram from Alessandro Panizzardi that the army had presented in a form implicating Alfred Dreyfus; the ministry’s role reveals a sharp divide between technical intelligence work and the military effort to shape evidence around an existing accusation.

Institutional Role and Codebreaking Team

The codebreaking operation did not belong to the Statistical Section or to the French Ministry of War. It was run from the French Ministry of Foreign Affairs by a seven-man team headed by Major Étienne Bazeries. This separation mattered: a crucial decoding could be checked outside the military intelligence office whose personnel were pursuing the case against Dreyfus.

Bazeries had a public reputation as an accomplished cryptanalyst. Newspapers had credited him with breaking the Great Cipher of Louis XIV and identifying the Man in the Iron Mask. Picquart found him in his office working in his shirtsleeves over a cylindrical enciphering device taken apart across his desk. The scene presents the ministry’s codebreaking as specialized practical labor, distinct from the rank-conscious military offices Picquart otherwise encounters.

The Panizzardi Telegram

Picquart brought Bazeries the coded text copied from the archive and a purported solution written out by Charles-Arthur Gonse. That version said that Dreyfus had been arrested, that the French Ministry of War possessed evidence of his dealings with Germany, and that necessary precautions had been taken. Bazeries rejected it immediately, insisting that the telegram did not say what the military wanted it to say.

Bazeries reconstructed how the message had reached his team. Panizzardi took it to a telegraph office on avenue Montaigne at three in the morning; through an arrangement with the telegraph service, it was at the ministry by ten. At eleven, Jean Sandherr arrived demanding an urgent decryption. Bazeries initially considered the cipher too complex, but Sandherr offered a clue: a particular word would be present. He supplied the word Dreyfus.

According to Bazeries, Sandherr explained that he had arranged for newspapers to identify Dreyfus as the arrested spy the previous day. He expected the person employing Dreyfus to panic and contact superiors, and interpreted Panizzardi’s telegram as confirmation that the tactic had worked. But Bazeries’s eventual solution did not match that expectation. The episode shows how a real interception and a deliberate leak could be used to direct the interpretation of intelligence before the cipher had been broken.

The decoded message did not remain solely within the codebreaking team. Bazeries said he had given it to Billecocq for hand delivery; when Picquart asked who received it, Billecocq confirmed that he had personally delivered it to Auguste Mercier, then minister of war. The ministry’s work therefore produced a result that crossed into the military chain of command, even as the version Picquart later examined carried Gonse’s incompatible solution.

Technical Findings and the Secret File

The contrast between the telegram and the Dreyfus secret file is central to the ministry’s significance. When Picquart opened the file, he found five documents, but no document or witness directly naming Dreyfus as a traitor. The nearest apparent link was an initial in a reference to a lowlife D. His review exposed a file built from circumstance and insinuation rather than direct proof.

The Panizzardi telegram offered a different kind of test: a coded message that specialists could work through and whose asserted meaning could be compared with a technical solution. Bazeries’s rejection of Gonse’s version made the dispute more than a disagreement over military judgment. It raised the possibility that a purportedly decoded document had been made to support a conclusion that the codebreaker said it did not contain.

Secrecy, Publicity, and Institutional Limits

The Foreign Ministry’s technical role unfolded amid the widening circulation of information about the case. An anonymous article in L’Éclair first disclosed in the press that a secret file had been presented to the court-martial judges. Picquart counted nineteen people already known to have encountered the file, including military officials, judges, and the president’s doctor, before adding a further source who had informed Mathieu Dreyfus. His count illustrates how quickly restricted material could travel beyond its original custodians.

The dispute also became public through accusation and testimony. In an interview published in Le Matin, Charles Ferdinand Walsin Esterhazy blamed Picquart for the investigation against him and alleged that Picquart had shown secret files to Louis Leblois. Later, at Émile Zola’s trial, Georges de Pellieux claimed that an absolute proof of Dreyfus’s guilt had reached the French Ministry of War in 1896. These episodes belong to the wider military and press controversy, not to the Foreign Ministry’s codebreaking operation; together they show how evidence and claims about evidence escaped the boundaries of official secrecy.

The ministry’s importance lies in this institutional contrast. Its seven-man team supplied a technical check on a telegram that military authorities treated as incriminating, while the public dispute around the secret file depended on controlled circulation, interpretation, and assertion. In the account, cryptanalysis does not resolve the whole case, but it makes visible the difference between what a document says and what powerful institutions need it to say.