The Palace of Justice on the Île de la Cité is the setting for a decisive transfer of the Dreyfus affair from military secrecy into public legal proceedings. Most consequentially, its Paris Court of Assize hears the criminal-libel case against Émile Zola and summons Georges Picquart as a witness. The building’s crowded courts and public approaches make it more than a backdrop: inside, claims about secret evidence and military authority are tested before a judge and jury; outside, demonstrations and attacks show how quickly courtroom disclosures become matters of public conflict.

Judicial Setting and Public Access

The Palace of Justice is presented as a working legal complex, where people pursuing different cases share halls, corridors, and witness rooms. When the government charges Émile Zola with criminal libel, it cannot keep the matter in a private chamber controlled by the army. The case is brought before the Paris Court of Assize and moved to the top of the waiting list, so the proceedings can begin quickly. This change of venue and audience matters: a dispute that the military had managed through restricted access now enters a court where lawyers, jurors, reporters, and members of the public can hear testimony.

The book also places a request for a private hearing within this legal setting. The prosecution argues that the evidence against Captain Dreyfus involves national defence, while his counsel, Edgar Demange, objects that he should receive the same treatment as any other accused person. The exchange makes the tension between secrecy and open justice concrete. A claim of national security can be used to close proceedings, but the demand for equal treatment insists that secrecy itself requires scrutiny.

Picquart’s Arrival and the Assize Court

Summoned to testify on a Friday in February, Picquart is brought from Mont-Valérien to the Palace of Justice in a military carriage. He has promised not to leave the precincts and to return to the fortress with his guards after the day’s session. In exchange, he is allowed to enter the building without an escort. The arrangement gives him limited freedom within the court complex while making clear that he remains a prisoner under military authority.

The approach to the building is already politically charged. An anti-Semitic demonstration is taking place in the boulevard du Palais, and some demonstrators recognize Picquart and try to follow him into the courtyard. French Gendarmerie stop them before they reach him. The episode links the court’s formal proceedings to the hostility gathering outside: Picquart arrives not as a neutral observer but as a public figure whose testimony has become entangled with the campaign over the Dreyfus case.

Inside, the Palace’s large public spaces are crowded with court staff, lawyers, parties, witnesses, reporters, officers, and spectators. Picquart passes through the Salle des Pas-Perdus and the Galerie des Prisonniers to the witness room, then enters the Assize Court, where the crowd falls quiet as he approaches the stand. The courtroom’s arrangement makes its different functions visible: twelve jurors sit apart from the spectators, the judge presides from an elevated bench, the lawyers occupy the space below, and Picquart must give evidence before them all. When asked for his residence, he names Mont-Valérien, prompting laughter that briefly punctures the formality of the proceedings.

The people present connect the trial to the wider political and journalistic dispute. Émile Zola and Perrenx, manager of L’Aurore, sit with their counsel, Fernand Labori and Albert Clemenceau. Georges Clemenceau is also allowed to sit with his brother despite not being a lawyer. Behind Picquart, officers including General Gonse, General Pellieux, Henry, Captain Lauth, and Felix Gribelin watch the proceedings. The arrangement places the military establishment within sight of the witness whose account may challenge its handling of the case.

Testimony and the Disclosure of Evidence

Fernand Labori asks Picquart to explain the Esterhazy case, his investigation, and the circumstances of his departure from the Ministry of War (France). The questions bring Picquart’s investigation into a public forum where the court must consider what his inquiry found, rather than merely accepting the military account of why he was removed. The Palace thus becomes the place where an internal dispute about evidence and authority is recast as testimony in a civilian trial.

The confrontation sharpens when General Pellieux addresses the jury and claims to have seen a document that proved Dreyfus’s guilt. He presents it as an authentic item that had reached the Ministry of War (France) in November 1896. Picquart recognizes the claim as referring to a letter that had surfaced shortly before his removal from Paris, and signals to Labori that Pellieux has made a consequential mistake by raising it. When the judge invites him to add something, Picquart returns to the witness stand and identifies the document as a forgery. The courtroom has now heard not only an official assertion of proof but a direct challenge to the document’s authenticity from the officer who had investigated the case.

The hearing also connects to another inquiry unfolding in the same building. On the day after his testimony in the Assize Court, Picquart is questioned by Paul Bertulus, a magistrate appointed by General Billot, about forged messages sent to him in Tunisia. Picquart names Blanche de Comminges as someone whose identity had been used in the affair and attributes that use to Armand du Paty de Clam. The Palace therefore serves both as the venue for Zola’s public trial and as a setting for questioning about the attempts to discredit Picquart himself.

Public Consequences and the Building’s Significance

The court’s proceedings do not contain the conflict. After one day’s session, Picquart has to be taken out through a side door to avoid a crowd. Nearby, demonstrators burn books by Émile Zola and publications sympathetic to the Dreyfus cause; on the route away from the Palace, a mob smashes shop windows and targets a storefront identified with Jewish owners. These events show the limits of the courtroom’s authority: testimony can make suppressed claims audible, but it cannot by itself restrain the public hostility that surrounds them.

The Palace of Justice consequently gathers several competing uses of law into one location. It is a venue for a criminal-libel prosecution, a public stage for testimony about military evidence, and a place where Picquart is separately questioned about forged communications. The trial’s open setting contrasts with earlier demands to keep sensitive proceedings private, while the presence of senior officers among the spectators shows that the military cannot remain outside the public legal arena. In the book’s account, the building marks a change in the circulation of evidence: secrets once handled within official channels are now disputed before a jury and an audience, with consequences that spill from the court into the streets.