Antoine Lauth, General Staff intelligence officer

Antoine Lauth, a General Staff intelligence officer, is drawn into the case against Georges Picquart as both a recipient of intelligence material and a witness whose account contests Picquart’s. His role is concentrated around the petit bleu: what Picquart asked him to do with the document, and what Lauth later said about those instructions, become part of a wider courtroom struggle over evidence and credibility.

Identity and Position

Lauth appears in the narrative under different military titles: Captain Lauth in Picquart’s account of passing him material, and Major Lauth when he takes the stand. The book identifies him through his work in military intelligence rather than through a personal history or private life. His involvement places him among the officers whose technical handling of documents and testimony becomes consequential in the Dreyfus affair.

One episode links Lauth to the intelligence material collected through an agent. Henry had missed a meeting because his mother was ill, and the material arrived in a cone-shaped brown paper sack, bulkier than usual. Picquart says he did not examine its contents with Henry: he put the cone directly into his safe and gave it to Captain Lauth the following morning. Asked whether anyone could have interfered with it in the interval, Picquart’s account is that it had been locked away. The episode establishes Lauth as the next person in the chain of custody, while also making the sack, the safe, and the overnight interval details available for later questions about whether the material could have been altered.

The Dispute over the Petit Bleu

The sharper conflict concerns the petit bleu, a torn document that Picquart says he wanted photographed so it could circulate within the ministry without exposing the source. Picquart describes asking Lauth to make an image that would look like a complete document, using a method Picquart compared with the earlier photographic treatment of the bordereau. In Picquart’s telling, Lauth pointed out that the address side had not been franked and that anyone examining it would therefore infer that it had been intercepted before posting. Picquart says he only considered the possibility of having it franked and then dropped the idea.

At the hearing, however, Picquart acknowledges that Captain Lauth gives a different version. The dispute is not merely about the document’s appearance: the competing accounts assign different significance to Picquart’s request and to the possibility of making the petit bleu look as if it had been posted. Picquart asks why he would go to such lengths to implicate falsely a man he had never met, but the challenge is returned to him rather than resolved by the exchange.

Testimony and Confrontation

The contradiction becomes more explicit when Picquart is told that witnesses have testified they saw him perform the disputed act. Henry, Major Lauth, and Gribelin are named. Picquart denies that their account can be right and asks for the officers to confront him. Later, Lauth rises from his place beside Henry and gives his version directly: he says Picquart asked him to remove the traces of tearing from the petit bleu, to have it stamped by the post office, and to testify that he recognized the handwriting as belonging to a foreign gentleman. Lauth says he had never seen that handwriting before.

Picquart counters with the document’s physical condition. It had been torn into sixty pieces and fastened together with adhesive strips on the address side; in his view, a stamp could not plausibly have been put on it without looking ridiculous. Neither Lauth nor Henry answers this objection in the exchange. The scene leaves the reader with opposed testimony and a concrete material question, not an independent determination of which account is true.

Narrative Role and Significance

Lauth’s part gains weight through repetition. About a month after Picquart’s arrest, investigating judge Fabre stages confrontations in which Picquart is asked again about incidents including the reconstruction of the petit bleu, before an adversary enters to give another account and Picquart is invited to respond. Lauth is among those Picquart faces in this process. The repeated format makes the proceedings feel less like a single settled examination than a contest in which the same episode is reconstructed through conflicting testimony.

Picquart views Lauth and Henry as facile liars, a judgment shaped by his antagonism and not presented as a neutral finding. The narrative’s first-person perspective makes that distinction important: readers encounter Lauth’s claims through a proceeding in which Picquart is both the accused and the narrator of his own defense. The author’s note likewise frames the work as a novelistic retelling of a real political scandal, acknowledging that the story simplifies and dramatizes history and that Picquart never wrote the secret account imagined by the book. Lauth therefore functions both as a participant in the represented inquiry and as a witness within a deliberately shaped narrative about how evidence, memory, and institutional authority collide.