Brigade Criminelle

Brigade Criminelle is the criminal-investigation unit of Nice’s police service, and the principal investigative force in this case. Under Captain Paul Darac, it turns a killing during a prayer service into a wider inquiry involving surveillance, witness testimony, a kidnapping, and the reassessment of an older criminal case. Its defining work is collaborative: individual clues become useful only when investigators compare viewpoints, reconstruct timing, and coordinate people and expertise.

Identity and investigative remit

The novel identifies Paul Darac as a captain of Brigade Criminelle, the Nice unit for which he leads the inquiry. Its remit is practical rather than narrowly forensic: investigators examine the original scene, seek witnesses, interpret surveillance footage, coordinate searches, and pursue leads that cross into older cases. The case’s changing scope demonstrates how a local criminal investigation can require several methods and lines of inquiry without losing its focus on evidence.

At the Rue Verbier prayer room, Darac surveys the surrounding buildings and recognizes that the scene offers many potential witnesses. At least fifty balconies and hundreds of windows overlook the area, while cameras in a nearby car park may record activity outside the prayer room itself. The opportunity comes with a burden: investigators must sort a large number of possible observations, and the officer best suited to organize that work, Lieutenant Roland Granot, is on leave. Scene management, the episode makes clear, is not simply a matter of finding witnesses; it is also a matter of triage.

Reconstructing the killing

The inquiry uses the victim’s posture and the apparent quiet of the scene to challenge the first impression of a peaceful death. The victim, Emil Florian, had knelt and prostrated himself with the others, then failed to rise. Investigators reason that he died in a state of severe paralysis, which would have concealed his distress from people nearby. The pathologist considers a powerful muscle relaxant and identifies injection as the likeliest means of administration, while making clear that the substance may already be undetectable. A small sample of liquid recovered from cut-up clothing offers a possible avenue for analysis. These are investigative hypotheses and material leads, not a certainty established by the observations alone.

Surveillance adds a separate strand. The camera trained on the marketplace does not cover the area immediately outside the prayer room, so its limits matter as much as its images. Investigators first use its view to establish the movements of a woman with a shopping trolley, then compare footage from different cameras with what witnesses saw. Marie Lacroix, who watched from a third-floor balcony, supplies details absent from the available recording: Florian joined the prayer meeting, the woman struck him with her trolley, and he bent forward before remaining down. She also saw him arrive before the relevant CCTV footage begins. Her account extends the timeline rather than simply confirming what the camera can show.

That earlier interval helps the investigators reconstruct Florian’s movements before the killing. He appears to have noticed Armani Tardelli on Jean Médecin, concealed himself behind a Colonne Morris, and then moved away while a small crowd gathered around a living-statue performer. Armani independently recalls seeing that crowd while briefly visiting a shop to collect shoes. The two accounts give the investigators a sequence linking street activity to the later prayer gathering, while illustrating why footage without its surrounding human testimony can leave important gaps.

Coordination and expanding leads

Brigade Criminelle’s work becomes more demanding when the inquiry turns to the abduction of Agnès and Vincent Dantier. Darac states that his team is investigating the abduction, and the investigators examine the apparent political claim attached to it while testing whether the matter is criminal rather than political. The question of jurisdiction and public interpretation does not replace ordinary investigative work: the team continues to seek evidence about how the abduction was carried out and who was responsible.

With a deadline of just over twenty-four hours, Darac organizes a staged search for information about a van. He initially limits calls to local outlets, with the intention of widening the search if that produces no result. Yvonne Flaco, who has coordinated telephone searches before, is assigned to lead teams with Max Perand. At the same time, Darac sends officers door to door, updates them about the vehicle, circulates the limited description available, and arranges for additional people to search lower down the hill. The plan divides the work by method and area while preserving the option to expand it.

A technical puzzle in the camera record shows the unit’s reliance on close comparison rather than a quick assumption of electronic interference. When footage appears to repeat a five-minute sequence, Darac rejects explanations that would disrupt the continuous time tagging. He proposes a simpler method: the van’s driver photographed the camera’s view on Thursday evening, then placed that photograph in front of the lens later. The resulting image blip, the camera’s attempted autofocus, and the slight difference in framing support the reconstruction. Lartigue adds that operating modern camera controls would explain why the driver removed his gloves and put them back on. The proposed tactic accounts for the apparent gap without requiring the camera’s time record to have been altered.

When Darac develops a revenge theory, he gives Granot a different investigative task: return to the Caserne and retrieve cases in which his superior and Vincent Dantier worked together, especially those that led to long prison sentences. This move connects current operational leads with the professional history of the people involved. It also reveals how the investigation changes direction as Darac reassesses the apparent terrorist motive and considers personal revenge instead.

Evidence, interpretation, and consequences

Darac’s later presentation to the team gathers disparate clues into a case against Corinne Delage. He places her at the scene when poison was injected into Florian and again when Florian died; he adds that she recently bought a van for €9,500 with money supplied by a third party, an arrangement that could conceal the purchaser’s identity. The vehicle is then identified as almost certainly the one used in the Dantier abduction. Darac also introduces information about Delage that Frankie Lejeune is positioned to explain, linking the new lead to the investigation’s continuing attention to religious identity and the case’s concealed history. The scene records Darac’s evidentiary synthesis, not an independent verdict on every inference.

The case also calls for a response to an immediate threat at a lock-up. Darac arrives to find water seeping from beneath its roller door. Although regulations require him to call for backup and wait, he remembers Astrid’s thirty seconds and acts at once. He drives into the roller door, enters the garage, and sees a hose running from the van’s tailpipe. The instruction to disconnect it and locate Jarret turns the unit’s investigation into a rescue operation. The episode places procedure and urgency in direct tension: Darac’s action is consequential precisely because waiting may cost lives.

A late interview gives the investigation a further historical lead. Albertine Laseige recalls that Adam Djourescu once ran back from the Florians’ apartment carrying an unidentified object in what she remembers as an awful situation. He shouted, “Thank you, Vincent.” She had been puzzled because Louise’s husband was Marcel, not Vincent; learning that Vincent was Adam’s friend suggests a possible explanation for the name and raises the possibility that Vincent was present, or even proposed an exchange of the living for the dead. Laseige offers this as a recollection and a question, not as a proven account. The detail matters because it directs the investigators toward an old connection that might clarify the present case.

The unit’s narrative role

The account of Brigade Criminelle emphasizes investigation as a process of revising and testing explanations. A balcony witness fills a gap in the camera record; the camera’s limitations shape how that witness is used; a small anomaly in footage prompts a physical explanation; and a past case becomes newly relevant when an old phrase is remembered. Individual officers contribute different forms of expertise, while Darac’s leadership consists in connecting them and deciding when a developing theory warrants action.

That method is neither detached from human stakes nor guaranteed to proceed without risk. The team faces a strict deadline, uncertainty about the motive for the abduction, and an endangered hostage at the lock-up. Its progress depends on dividing labor and coordinating searches, but its decisive moments also depend on judgment under incomplete information. In this way, Brigade Criminelle functions not merely as the institutional setting for the case but as the mechanism through which scattered observations acquire a chronology, competing explanations are tested, and evidence is carried toward intervention.