Lebel deduces the Jackal will strike on Paris Liberation Day

Claude Lebel’s deduction that the Jackal will strike on Paris Liberation Day gives the manhunt its first clear deadline. Faced with a killer whose identity and location are still uncertain, Lebel recognizes that the assassin’s apparent delay is not wasted time but evidence of a schedule. Once he connects that schedule to Charles de Gaulle’s uniquely important annual appearance, the search acquires a date: Sunday, August 25.

The search before the deduction

The investigation began with an unusually broad mandate. After fifty minutes of briefing by the Interior Minister, Lebel emerged dazed: the task was a directive, not a request for advice. He was to establish his own office and could draw on the information and resources of the senior officials assembled around the table, without a limit on costs. The scale of those powers did not remove the central difficulty. The police were searching for a man they could not yet name and could describe only poorly.

Lebel set about turning that authority into working capacity. He made Caron his sole assistant, ordered a camp bed and basic washing equipment for the office, and arranged for coffee to be kept on hand. He also required ten outside telephone lines and a permanently assigned operator. The details make the investigation feel less like a single detective’s private inspiration than a temporary command operation built around constant communication and rapid access to other services.

For three hours, Lebel and Caron contacted senior crime investigators abroad. Lebel kept the request deliberately guarded: he could not yet present it as an official inquiry between police forces, because it was not clear whether the intention to commit a crime had even reached the stage of preparation. But he could ask whether their files or experience suggested a political contract assassin with successful killings behind him. The pause that followed the description registered the gravity of what he could not state openly: there was only one target in France likely to interest such a killer, Charles de Gaulle.

The uncertainty persisted even after the inquiry had been under way for seventy-two hours. Lebel told the conference that the assassin alone knew his timetable, and the police could not tell where in it they had intervened. Their best prospect was to identify and locate the man under his new name before he realized how much the investigators had learned. The officials feared that he might already be in France, perhaps even in Paris, and Colonel Rolland raised a competing possibility: Charles Calthrop might have learned that the plot was exposed and gone to dispose of his weapon and ammunition in Scotland. That explanation could leave the police unable to bring charges. At this stage, the investigation had possibilities, not a settled account of the assassin’s next move.

Reconstructing the Jackal’s movements

The files supplied pieces of a chronology but not yet its meaning. An archive search uncovered records for Alexander James Quentin Duggan: he had entered France from Brussels on the Brabant Express on July 22, then appeared on the Etoile du Nord Express from Paris to Brussels on July 31. A hotel registration in Duggan’s name showed a stay near the Place de la Madeleine from July 22 through July 30. Lebel chose to visit the hotel proprietor quietly rather than stage a raid; the man he sought was no longer there by August 15, and the discreet inquiry spared the other guests a disturbance.

Later, Lebel considered how the Jackal had escaped from Gap. If inquiries established that the car had been transformed during its overnight journey toward Ussel, then the paint used to disguise it had probably been bought in Gap. That would suggest the assassin had been warned that the police had uncovered the Duggan identity and would soon trace his car. Lebel could not say exactly where the leak originated: information passed through switchboard operators, telex operators, and junior or middle-ranking officials as well as senior officers. But he believed the Jackal had received two warnings—one that the assassination plot was known, and another that his Duggan identity had been exposed. The suspected source was Valmy, whose message to Rome had been intercepted by the DST.

These developments sharpened the question without answering it. A man warned that his cover had been compromised might flee, discard evidence, or change identity. Yet the evidence did not show that the Jackal had abandoned his purpose. Lebel’s decisive move was to reconsider the delay itself: if the assassin had been free to leave Gap, why had he not immediately become Pastor Jensen, travelled to Valence, and taken an express to Paris? Why had he spent a week apparently killing time after arriving in France? Lebel’s earlier certainty that the Jackal had selected a day now supplied the explanation for that otherwise puzzling interval.

August 25 becomes the deadline

At the conference, Lebel first contradicted the expectation that the police needed only a name, a description, and a photograph before granting the Jackal several hours of liberty. He said they had three days. Asked how he knew, he acknowledged that he had been foolish not to see the answer sooner: the Jackal had chosen his day and was waiting for it.

Lebel then asked Jean Ducret whether the President had engagements outside the palace that day, the following day, or Saturday. Ducret said he did not. Lebel’s next question fixed the date: what was Sunday, August 25? The answer was Paris Liberation Day. The conference recognized that many of its members had been with de Gaulle on that day during the Liberation of Paris in 1944. For Lebel, the connection was not simply that a public ceremony would gather people in one place. The Jackal understood that de Gaulle would not spend this anniversary elsewhere: it was the President’s great day, and the assassin had been waiting for the occasion he could predict.

The inference transformed the meaning of the pursuit. Before it, the police had to identify an unknown man while fearing that an attack might be imminent or might already have been abandoned. Now they had a plausible date and a reason for the Jackal’s delay, but still no confirmed identity or location. The Interior Minister concluded that, with the suspected source of information gone, the Jackal could find no corner of Paris or community willing to shelter him, even unwittingly, and pressed Lebel to name him. Lebel had not yet done so. The date made the search more focused, not complete.

The deduction and the approaching ceremony

The scene’s suspense rests on the difference between knowing when and knowing who. Lebel’s reasoning narrows the assassin’s likely timetable through circumstantial clues: a week of apparent inactivity, an exposed false identity, a transformed car, and the President’s calendar. The date is not obtained from a confession or a recovered plan; it emerges when Lebel asks why the Jackal behaved as he did and tests that explanation against the public schedule. The inference remains a reasoned conclusion, but it gives the scattered records a common direction.

The later security perimeter makes the danger of that deadline concrete. After the street had been closed, an officer reported that only an old, visibly ill cripple had been allowed through, carrying identification and a Mutile de Guerre card and giving an address on Rue de Rennes. The detail does not establish that Lebel knew who had passed the barrier when he made his deduction. For the reader, however, it brings the planned date and the disguise into close alignment: the man the police are trying to locate can approach the ceremony by appearing to belong among those who would not normally be treated as a threat.

Lebel’s realization therefore marks a turning point rather than a solution. It replaces an indefinite hunt with a countdown to August 25 and makes the assassin’s patience legible as part of his plan. But the police still have to convert that calendar insight into a name, a location, and an interception before the public ceremony becomes the setting for the attempt.