Lartigue

Lartigue, addressed by colleagues as Lartou, is a police investigator whose work with surveillance footage helps make otherwise invisible actions legible. The role is practical and evidentiary: Lartigue locates what cameras can show, marks what they cannot, and helps Darac test explanations against the details of images and timestamps. In two investigations, this work exposes both the value and the vulnerability of recorded vision.

Identity and Investigative Role

Lartigue’s place in the team is established through technical analysis and cooperation with Darac. The investigator retrieves and presents CCTV material, identifies the coverage limits of the cameras, and attends closely to image anomalies. Rather than treating footage as a complete account of events, Lartigue distinguishes between what a camera records and what investigators must infer from it. That distinction becomes essential first in the Rue Verbier inquiry and later in reconstructing Agnès’s disappearance.

The evidence presents Lartigue primarily through professional action rather than private biography. Colleagues address the investigator as Lartou, and Darac turns to Lartigue for camera footage, timing, and technical interpretation. The character’s contribution is therefore not simply to supply pictures: it is to clarify the conditions under which those pictures were made and the limits on what they prove.

Rue Verbier and the Limits of Coverage

After Emil Florian is killed during a prayer service, Darac surveys the surrounding streetscape and considers how many people might have seen the event. At least fifty apartment balconies and many more windows overlook the scene, while cameras in a nearby car park might preserve evidence of a shot. The scene offers abundant possible witnesses and recording devices, but neither guarantees a clear account of what happened. The early investigation consequently depends on sorting potential sources rather than assuming that visibility equals knowledge.

Lartigue’s later presentation of the marketplace footage makes that limitation explicit. There is no camera coverage outside the prayer room itself. The west-facing camera shows the marketplace, and Lartigue singles out the arrival of an old woman with a trolley as the first material moment of interest, describing it as the “Before The Incident” view. The corresponding footage from another camera is reserved for comparison. Lartigue’s approach builds the case by separating the sequence into observable stages instead of claiming that a single recording captures the killing.

A witness eventually supplies the context that the footage cannot. Marie Lacroix, calling from a third-floor balcony opposite the Basilique, saw Florian join the prayer meeting and saw the woman later identified as Corinne Delage strike him with her shopping trolley. Lacroix also saw Florian arrive before the surveillance footage began. Lartigue’s recordings thus become useful not because they contain the whole event, but because they can be aligned with testimony and a wider timeline. The distinction between recorded image and human witness is central to how the inquiry reconstructs what happened.

The Kidnapping Investigation and the Repeated Image

Lartigue’s technical attention becomes especially consequential when investigators review footage of Agnès’s arrival in a Citroën and her failure to reappear around the corner at the end of a footway. Darac asks Lartigue to note the exact times of brief image disruptions, identifying the interval in which Agnès was taken. The camera appears to show no one intervening, so the missing minutes initially pose a problem: the time tags continue without a break, ruling out a simple loss of recording time.

Lartigue considers possible forms of interference, including a jammer and a device that might make the camera record the same five-minute sequence twice. The continuous timestamps make those explanations inadequate. Darac then proposes a simpler method: on Thursday evening, the van’s driver photographed the camera’s exact view, and on the following night the photograph was placed in front of the lens. The slight blur and altered framing fit the image of a still photograph being filmed rather than a live scene. Lartigue confirms an important practical detail: modern cameras can be difficult to operate while wearing gloves because their controls are fiddly. The earlier observation that the driver removed and replaced his gloves therefore gains investigative significance.

This exchange shows Lartigue functioning as both specialist and critical interlocutor. Darac supplies the central reconstruction, but it depends on Lartigue’s familiarity with camera operation and on the team’s close reading of small visual discrepancies. The false image does not erase the recording; instead, it exploits the camera’s ordinary function, creating an apparently continuous view that conceals the act taking place before it. Lartigue’s scrutiny helps turn a brief, imperfect visual anomaly into evidence of deliberate preparation.

Teamwork, Evidence, and Narrative Significance

Across the investigations, Lartigue’s contribution is cumulative. A camera angle establishes what the marketplace recording can and cannot show; a still frame helps identify the trolley woman; exact timestamps constrain the kidnapping window; and technical knowledge helps distinguish a genuine live image from a photograph placed before the lens. Each step narrows the field of possibilities without making surveillance infallible. The footage acquires meaning through comparison with witnesses, physical circumstances, and the behavior of the people who handled the equipment.

Lartigue’s role also sharpens the novel’s treatment of evidence. Cameras offer breadth and apparent precision, but their blind spots and susceptibility to manipulation make interpretation indispensable. In the Rue Verbier case, the decisive account includes what a balcony witness saw beyond the camera’s coverage. In the kidnapping inquiry, the apparent continuity of the image conceals an interruption in reality. Lartigue helps expose both limits, making technical observation part of the investigative reasoning rather than a substitute for it.