Espionage as a Modern Front Line

Espionage as a Modern Front Line is the principle Picquart turns into practice when he places covert surveillance directly opposite the German Embassy in Paris. Rather than treating intelligence as an invisible supplement to military action, he imagines it as a front that can be pushed into the enemy’s own territory. The resulting operation joins observation, technical improvisation, informants, and personal risk; its methods also expose the unstable boundary between disciplined intelligence work and intrusion.

From Doctrine to Operation

The idea begins with a small square of newspaper advertising an apartment on Rue de Lille, the same street as Hôtel de Beauharnais, which houses the German Embassy. Desvernine points out that the first-floor apartment faces the embassy, while the flat beneath it is already used by embassy personnel as an officers’ club. The location offers a way to watch people entering and leaving without drawing attention to the surveillance. Picquart is attracted both by the audacity of the plan and by its independence from Henry, making the proposed operation a practical alternative to relying on Henry’s channels.

The cover must make a tenant’s presence seem ordinary. Picquart considers a resident who could plausibly remain inside all day; Desvernine suggests a night-shift worker who would come home in the morning and leave in the evening. The plan turns the rhythms of an apparently private household into part of its disguise. Picquart gives Ducasse six hundred francs for the rental deposit and another four hundred as two weeks’ advance pay, and tells him to acquire decent shoes so that his appearance suits the address. He also insists on secrecy and on avoiding public association between himself and the new tenant.

Picquart opens an active case file under the name Operation Benefactor. Benefactor is the code name for Charles Ferdinand Walsin Esterhazy, taken from the girls of Pigalle. Ducasse rents the apartment and moves in with a few belongings; Desvernine, posing as Houdin, then explains the work. A delivery van brings sealed cases of optical and photographic equipment and darkroom chemicals, carried upstairs by technicians from the Sûreté. This sequence gives the operation a bureaucratic identity as well as a physical base: it is not an improvised visit but a planned intelligence project with a codename, funding, cover arrangements, and specialized equipment.

Watching the Embassy

Picquart’s inspection places the covert post in sharp contrast with the embassy across the street. In civilian clothes, with his hat brim lowered, he walks from his office to Rue de Lille and sees Hôtel de Beauharnais at number 78, behind a high wall and open wooden gates. Beyond the courtyard stands the five-storey mansion, its entrance approached by red-carpeted steps and marked by the German Imperial Eagle. The observation apartment is at number 101, close enough for its occupants to study the embassy while remaining inside an apparently ordinary residence.

The rooms have been altered for surveillance. The shutters are closed, and three small spyholes face the embassy. One holds a modified Kodak camera, purchased in London for eighteen pounds sterling, fitted with a film-roll canister and variable lenses and mounted on a tripod. A telescope occupies another aperture; at the third, Ducasse records the times at which visitors enter and leave. Photographs pinned to the walls identify people of interest, including Esterhazy, Maximilian von Schwartzkoppen, Count Münster, the elderly German ambassador, and the Italian military attaché, Alessandro Panizzardi. The post therefore combines a record of movement with attempts to identify the people being watched.

During Picquart’s visit, several men in frock coats cross to the embassy gates. Two shake hands with a third before going into the courtyard; the others remain on the pavement. Through the telescope, Ducasse identifies von Schwartzkoppen and Panizzardi. The scene demonstrates the reach and the limits of visual observation: the agents can follow arrivals and recognize individuals, but they cannot hear what the men say. Picquart’s attention turns from the street-facing windows to the fireplace, where the adjoining flues might offer a route toward the embassy’s rooms.

Listening Through the Chimneys

Picquart reasons that if the ground-floor apartment’s fireplace shares a flue with the one in the observation flat, a speaking tube might carry sound between them. The listening devices are intended to extend surveillance beyond visible movements, with a second tube planned for the bedroom, where von Schwartzkoppen and Panizzardi might discuss more private matters. The design depends on the building’s layout and on a concealed passage through the chimney, not simply on more powerful equipment.

Installing the tubes is slow and precarious. The ground-floor flat must be empty, usually at night, and the upstairs neighbours have begun asking Ducasse about the noises and his daily routine. Desvernine has to bring in tubes, a saw, cutters, a hammer, a chisel, and sacks for rubble. A single brick may take the whole night to loosen: each hammer blow must be separated by a pause, because a shower of soot falling into the Germans’ fireplaces could expose the work. The labour is filthy and strains the agents’ nerves; Desvernine reports that Ducasse is drinking heavily. Espionage here is not a distant abstraction but a physically invasive task whose concealment depends on patience, silence, and the cooperation of people living nearby.

The possibility of entering the German premises by force makes that danger more explicit. Desvernine brings Picquart a leather tool roll containing finely made lock-picking instruments designed for the Sûreté: different picks for different locks, and rakes for tumblers that stick. Their precision unsettles Picquart, who considers the risk of an agent being caught burglarizing a property rented by the Germans. The scene sets technical capability against operational judgment. Having the means to enter is not, for Picquart, sufficient reason to use them; a method that compromises the operation may be worse than a slower one.

Cover, Access, and the Meaning of the Front Line

A less conspicuous solution comes from Picquart’s suggestion that agents pose as chimney sweeps at the time of year when fires are no longer needed and chimneys are cleaned. In mid-May, Desvernine reports that a patriotic sweep, connected to him through his wife’s brother’s friend and a shared regiment of dragoons, has agreed to help. The man’s father was killed in 1870, and he asks no questions. He enters the embassy flat while its occupants are drinking before a meal, goes back and forth to the observation apartment, lowers and secures both tubes while appearing to clean the flues, and leaves his card. One of the Germans even tips him. The episode makes concealment depend not on technical disguise alone but on exploiting a familiar service and a moment when the presence of a tradesman seems unremarkable.

Picquart later invokes the doctrine that espionage is the new front line in the war against the enemy. Speaking to Boisdeffre, he argues that the surveillance post pushes that line into the heart of German territory and belongs to the French Army’s tradition. When Boisdeffre suggests that Picquart hates the Germans, Picquart distinguishes political hostility from personal loss: Alsace is occupied, and his family’s home is there. The exchange connects strategic language to the lived consequences of occupation without making the operation merely an expression of animosity.

The intelligence work also has a human source beyond the Rue de Lille post. Colonel Foucault describes an unnamed German spy in the French army, supposedly a battalion commander aged between forty and fifty, who has passed information to von Schwartzkoppen for roughly two years. The material is mostly about artillery and is often poor; a recent example concerns a gunnery course at Châlons. The information has reached von Schlieffen, who suspects that the source may be a hoaxer or agent provocateur and has told von Schwartzkoppen to stop dealing with him. Picquart conceals his recognition of the details from Foucault. The report illustrates how intelligence can be consequential yet uncertain: information circulates up a chain of command, while doubts about its source can end the relationship before the source is publicly identified.

That uncertainty shapes Picquart’s instructions for the planned Basel interview with Richard Cuers. Lauth, Tomps, and Inspector Vuillecard are assigned separate roles in a carefully arranged meeting and approach, with the interview to focus chiefly on Esterhazy but not to be confined to him. Picquart orders Lauth to extract every possible scrap of information, continuing into the next day if necessary. The order completes the concept’s practical logic: surveillance generates leads, leads require testing, and intelligence is pursued through patient questioning as well as cameras, listening devices, and covert access. The front line is therefore not a single installation but a network of observation and inquiry, extending wherever evidence may be found.