Alphonse Bertillon
An Officer and a SpyAlphonse Bertillon appears in the account as a handwriting expert whose authority is associated with a conspicuous suitcase of diagrams and a striking claim: that Alfred Dreyfus had forged his own handwriting to make the Bordereau. His continued insistence on that explanation at the Rennes trial gives him a distinct role in the effort to sustain the case against Dreyfus, even as the account offers no detailed demonstration of Bertillon’s methods.
Identity and Forensic Role
Bertillon is identified under the heading for handwriting experts, linking him to the evidentiary question at the center of the case: whose hand produced the Bordereau. The available account does not describe his training, the construction of his diagrams, or the steps of his analysis. Instead, it presents his expertise through the diagrams he carried and the conclusion he continued to defend.
That distinction matters to how he is portrayed. The visual apparatus of a suitcase full of diagrams suggests technical examination, but the reasoning behind it remains outside the scene. Readers encounter the force of his conclusion without a comparable account of how he reached it.
The Claim About Dreyfus
Bertillon’s position reverses the apparent meaning of handwriting evidence. Rather than treating a resemblance between the document and Dreyfus’s writing as evidence against him, he maintained that Dreyfus had deliberately imitated his own handwriting to produce the Bordereau. The theory therefore made a potential sign of authorship into an act of concealment.
The account identifies this as Bertillon’s continuing assertion, not as an established finding. It supplies no independent confirmation of the theory and does not explain the diagrams in his suitcase. His significance here lies in the persistence of the claim and in the way technical expertise could be attached to an explanation that kept Dreyfus under suspicion.
At the Rennes Trial
At the Rennes courtroom, Bertillon is part of the company of military witnesses assembled around the case, including Boisdeffre, General Gonse, Billot, Georges de Pellieux, Captain Lauth, and Gribelin. Their presence places him within a group whose members carefully avoid one another’s gaze, a detail that frames the proceedings as a gathering marked by strain rather than easy solidarity.
Later, as the witnesses and other participants prepare to leave, Bertillon remains in Rennes with his suitcase of diagrams and is still insisting that Dreyfus forged his own handwriting. The duration is specific: the narrator says he has been there nearly a month, as has everyone else. Bertillon’s theory is thus not a passing contribution recalled from an earlier proceeding; it remains active through the prolonged trial.
Narrative Significance
The account gives Bertillon little personal history or private motive. It instead defines him through the persistence of a technical claim. His diagrams make the argument materially visible, while the absence of a detailed explanation leaves its evidentiary basis unexamined in these scenes. That contrast concentrates the narrative’s attention on the power of expert assertion: a theory can continue to shape the prosecution’s position even when the account does not show the reader how its technical case is made.


