Norwegian National Security Service's Secret Search Engine

The Norwegian National Security Service's Secret Search Engine is a clandestine data-search system whose access to travel, accommodation, and financial records gives Harry Hole a way to uncover connections the murder investigation has not yet recognized. Its power lies not in a single incriminating file but in joining ordinary transactions into a pattern—and its use puts the investigators at legal risk.

Origins and Architecture

Harry Hole explains that he gained access while working with the Norwegian Police Security Service on the Redbreast case. The system, he says, uses the Internet's concealed backdoors, including those associated with MILNET, the American military network, and with the network's later development through ARPANET. In his account, the backdoors persisted after the network opened to commercial use in the 1980s. Search engines use Trojan horses to update passwords, codes, and extensions when a user goes online, allowing them to reach records that appear to belong to separate parts of everyday life.

The system's reach, as Harry describes it, extends to flight bookings, hotel reservations, toll-road passages, and online banking. It can scan practically anything with Internet access. He tells Katrine Bratt that the system has existed since 1984, invoking an Orwellian surveillance nightmare as something already real rather than a distant possibility. His password remains valid, even though his earlier State Security work is over. That surviving credential turns his past experience into a present investigative resource.

The search engine is not presented as a conventional public search tool. Its value comes from privileged access to records and the ability to compare them across contexts. A journey, a hotel payment, or a repeated co-presence in a restaurant can become a searchable trace; patterns among those traces can expose associations that no single record states outright.

Restricted Access and the Workaround

Harry emphasizes that only the Norwegian Police Security Service is authorized to use the system, and only during crisis situations. Searches can be traced to the computer from which they were conducted. If Harry or another officer at police headquarters accessed it, that trace could expose them to criminal prosecution. The search engine therefore offers evidence at the cost of creating a new vulnerability for the people using it.

To reduce that risk, Harry recruits Katrine Bratt, who is in a psychiatric institution, and proposes routing the search through its shared computer. A trace would then lead to a community computer at a psychiatric clinic rather than directly to a police officer. Katrine recognizes the implication: her usefulness to him includes the fact that she is a patient who cannot be prosecuted in the same way. Harry confirms that this is part of the calculation, while also valuing her intelligence and discretion. The workaround does not change the system's rules or make access lawful; it shifts the apparent point of origin and the risk attached to the search.

The clandestine method also shapes how the investigation proceeds. Harry wants the team to look for connections without questioning anyone who might alert the people they are tracing. The search engine allows an inquiry built around records and association rather than interviews, but secrecy is not merely a convenience: it is necessary to protect the searchers from detection and possible prosecution.

Searches That Link the Victims

Katrine first searches the three known victim names—Borgny Stem-Myhre, Charlotte Lolles, and Marit Olsen—and finds no useful result. She then expands the query to everyone reported missing in Norway during the previous twelve months. That broader search produces a lead: Adele Vetlesen, a 28-year-old from Drammen, reported missing by her partner in November.

Adele's name becomes significant through a Norwegian State Railways ticket record. On November 7, she bought a ticket online from Drammen to Ustaoset. Borgny Stem-Myhre had bought a ticket for the same date from Kongsberg to the same destination. The engine does not itself explain why the women were travelling there, but it places their journeys on a shared route and day. A missing-person search and a transport record, considered together, make a connection visible that the victim-name search alone did not disclose.

A second kind of query, the system's relations search, identifies links through recurring transactional patterns. Katrine describes comparisons among people who repeatedly pay by credit card at the same restaurant at the same time, share a fitness-club membership start date, or book adjacent seats on flights. Each pattern suggests a possible association rather than proving what the people did together. The method turns recorded co-presence into a lead that investigators can interpret and test.

That approach brings Iska Peller into the inquiry through her association with Charlotte Lolles. Katrine reports that Iska's account was charged on November 20 for two beds in each of four mountain huts, with the huts about a day's walk apart. Harry recognizes the pattern as a four-day mountain journey. The final hut was Hävasshütte, where the pair had been on November 7; the hut lies only half a day's walk from Ustaoset. The booking records thus draw several strands together: the same date as Borgny and Adele's rail journeys, a nearby mountain region, and accommodation for two. They supply a concrete route and timetable without, by themselves, establishing what happened there.

What the Tool Reveals—and What It Cannot

The search engine's findings work by accumulation. A missing-person entry identifies Adele; railway transactions place her and Borgny on journeys to Ustaoset on the same day; relations searches uncover Charlotte and Iska's repeated or shared activity; and hut payments outline a four-stage trip ending at Hävasshütte. No one record contains the whole connection. The system makes the investigation's scattered clues legible as a network of movements, payments, and possible encounters.

Its initial failure is part of that process: searching the three victim names alone yields nothing, so progress depends on widening the field to missing people and choosing criteria that expose indirect links. The machine's reach is extensive, but it does not automatically deliver an explanation. A shared booking, adjacent travel, or repeated co-presence is evidence of a pattern, not a complete account of motive or action. Harry and his colleagues must still interpret what the results mean.

The engine also makes the investigation's method inseparable from surveillance and secrecy. Private acts—travelling, paying for meals, booking beds—become searchable information that can reveal relationships their participants have not declared. That capacity helps Harry find links while bypassing risky interviews, yet it also depends on unauthorized access and a deliberate attempt to obscure who is searching. The same system that makes hidden associations visible threatens to expose its users. Its central importance is therefore double: it is both the investigative instrument that joins the victims' trails and the source of a new danger for the investigators who rely on it.