A court case in Germany has revealed an unusually detailed picture of a clandestine Turkish intelligence operation run from Ankara’s consulate in western Germany, allegedly using a locally hired consular employee and a German police officer to collect and transmit sensitive information, exposing a modus operandi that Turkish intelligence is employing in similar fashion in other countries.
Two rulings by the Federal Court of Justice (Bundesgerichtshof, BGH), issued on August 21 and September 3, 2025, describe a formal station of Turkey’s National Intelligence Organization (Milli İstihbarat Teşkilatı, MIT) embedded in the Turkish Consulate General in Hürth, near Cologne, staffed by full-time MIT personnel and supported by a locally hired Turkish consular employee who had lived in Germany for decades.
The rulings, StB 37/25 and StB 42/25, arose from an investigation led by Germany’s federal prosecutor, the Generalbundesanwalt, into suspected foreign-intelligence activity under Section 99 of the German Criminal Code. The investigation also encompasses suspected incitement or assistance in multiple violations of official secrecy because a co-suspect worked for the Cologne police headquarters and allegedly supplied internal police information to the consular employee.
German court records provide rare judicial confirmation that a permanent MİT intelligence residency operates inside Turkey’s consulate near Cologne.
The documents are significant not merely because German authorities suspect an individual Turkish official of spying. The BGH explicitly states that a MIT “Legalresidentur,” or legal intelligence residency, operates inside the Turkish consulate, staffed by career intelligence officers. The court further described MIT as serving the Turkish government, the president and his ruling Justice and Development Party (AKP) in implementing government policy, maintaining domestic security and collecting intelligence.
The Turkish mission is officially known as the Turkish Consulate General in Cologne but is physically located at Luxemburger Strasse 285 in Hürth, according to the Turkish Foreign Ministry.
The BGH rulings shed light on an investigation that had largely remained outside public scrutiny. They also reveal that German counterintelligence had apparently placed communications relevant to the case under secret surveillance: The evidence cited by the court includes records obtained through G10 measures, Germany’s legal framework permitting intelligence services under specified conditions to monitor communications, as well as a detailed March 28, 2025, report from the North Rhine-Westphalia Office for the Protection of the Constitution, the state domestic intelligence agency.
According to the factual findings considered sufficient by the BGH to establish an initial suspicion warranting searches, MIT maintains a resident intelligence unit at the Hürth consulate manned by full-time employees of the Turkish intelligence service.
The court said MIT focuses in particular on organizations that Turkey classifies as extremist or terrorist, a designation Ankara has broadly applied to political and civil society opposition groups with no involvement in violence or terrorism whatsoever but which have been targeted because of their critical stance toward the repressive government of President Recep Tayyip Erdogan.
The court added that the intelligence agency had increasingly been gathering information concerning activities that Turkish authorities regarded as hostile to Islam or Turkey.
That description is important because the suspected intelligence operation did not appear to be confined to collecting information on individuals formally suspected of terrorism. The court records show that the investigation involved information about broader Kurdish activities, police matters and incidents viewed as anti-Turkish or anti-Islamic.
The principal suspect was identified in the published decisions only as a female Turkish national who worked in the administrative section of the Turkish Consulate General. She arrived in Germany on April 1, 1995, through family reunification and has lived continuously in Germany ever since. She obtained an unlimited residence permit no later than 2005.
In 2012 the Turkish consulate hired her as what its records described as a locally recruited employee from the German labor market. Her employment continued through the period under investigation. According to the court, her duties included general assistance to other consular staff, research and inquiries and preparation of reports. She worked under employment contracts renewed annually.
German investigators, however, suspect that at least part of her work went substantially beyond ordinary consular administration.
The BGH said she dealt with matters of security and intelligence relevance, provided logistical and administrative support to MIT officers, conducted research and wrote reports that, because of the organizational links between Turkish consular and security institutions, were transmitted at least indirectly to MIT. Investigators believe she knew of and approved that transmission.
The suspected operation extended beyond terrorism-related targets to Kurdish political activity, German police matters, and incidents viewed as anti-Turkish or anti-Islamic.
Even more strikingly, the court records state that the woman attended events that the Turkish consulate viewed critically, observed them and subsequently prepared reports. The decisions do not identify those events, their organizers or the people whose activities may have been recorded, leaving open the question of how broadly the consulate’s surveillance activities extended into Turkey’s diaspora and political opposition in Germany.
The ruling therefore offers rare judicial confirmation that Germany’s counterintelligence authorities believe a Turkish diplomatic facility was being used not simply as a point of contact for MIT officers but as part of an intelligence collection structure involving consular personnel.
A second woman, identified only as T. in the August ruling, was employed as a policewoman at Cologne police headquarters and is being investigated as a co-suspect. According to the BGH, the two women had been in regular contact since at least 2021, communicating both by telephone and through encrypted messaging services.
Investigators focused in particular on communications from March 29, 2024, through February 27, 2025. During that period the police employee allegedly repeatedly transmitted internal official information and assessments from Cologne and possibly other locations. Some information was allegedly supplied in response to requests from the consular employee, while other material was sent at the policewoman’s own initiative.
The material principally concerned incidents regarded as hostile to Islam or Turkey as well as activities involving the outlawed Kurdistan Workers’ Party (PKK) or Kurdish groups viewed as close to it. But the BGH stressed that the information exchange was not limited to PKK-related matters: It also covered internal police processes and subjects with no connection to the PKK or its members or supporters.
German law criminalizes intelligence activity conducted for the intelligence service of a foreign power when directed against the Federal Republic. Section 99 of the Criminal Code provides for imprisonment of between six months and 10 years in the ordinary form of the offense.
Previous German jurisprudence has recognized that foreign-intelligence collection targeting members of a listed terrorist organization can present a more complicated question because Germany itself has an interest in combating terrorism. The PKK has been on the European Union’s terrorist list since 2002, a fact specifically noted by the BGH.
Investigators allege that a Cologne police officer repeatedly supplied internal official information and assessments to the Turkish consular employee.
But the court found sufficient grounds at the investigative stage to regard the alleged operation as directed against Germany because the information collection extended beyond such targets and involved German police information. In addition investigators suspected that the police employee’s disclosure of internal material constituted a separate criminal offense involving breach of official secrecy.
The BGH said the consular employee was suspected of knowing that her conduct ran contrary to the interests of the Federal Republic and accepting that consequence.
Under Section 353b of the German Criminal Code, unauthorized disclosure by a public official of information entrusted to or learned by that person through official duties can constitute a criminal offense when important public interests are endangered. The offense can carry imprisonment of up to five years or a fine.
By the time of the September ruling, German investigators were treating the consular employee as suspected of foreign-intelligence activity in conjunction with multiple instances of inciting or aiding the disclosure of official secrets. The Interior Ministry of North Rhine-Westphalia formally granted the authorization required for prosecution of the official-secrecy offenses on July 30, 2025.
The evidentiary foundation described by the BGH suggests the case originated at least partly from counterintelligence work rather than from a conventional police complaint.
The court said the initial suspicion rested substantially on a March 28, 2025, letter from North Rhine-Westphalia’s Office for the Protection of the Constitution and records generated by G10 surveillance measures.
The state intelligence report contained information about MIT, its operational methods, the internal structure of the Turkish Consulate General and the personal circumstances of both suspects. More significantly, the G10 records documented the timing and substance of conversations and information transmitted between the two women. For that reason the BGH rejected the defense contention that the search had been triggered merely by speculation, saying investigators had concrete factual indications supporting an initial suspicion.
The G10 law permits German intelligence authorities, under statutory safeguards and authorization procedures, to impose restrictions on the secrecy of telecommunications. German telecommunications providers can be required to furnish communications data or divert communication content to an authorized agency pursuant to such an order.
Germany’s investigation appears to have grown out of counterintelligence surveillance rather than an ordinary police complaint.
The BGH decisions do not disclose whose communications were initially targeted, when the surveillance began, how long it continued or the full content of the intercepted communications.
On application by the Generalbundesanwalt, an investigating judge of the Federal Court of Justice issued the first major warrant on July 2, 2025. The order authorized a search of the consular employee herself and the residential and ancillary premises she used, including associated basement rooms and garages.
Investigators were authorized to look for written records, mobile phones, computers, digital storage media and other material capable of revealing the woman’s communications with MIT officers or members of other Turkish intelligence services. The warrant also targeted evidence concerning people and matters allegedly investigated by the suspect, the methods through which she obtained information and the transmission of material intended for Turkish intelligence.
The search was executed on July 9, 2025, and investigators temporarily secured a number of items. That same day, the federal prosecutor asked the BGH investigating judge to approve continued retention of the material so that investigators could examine it.
The published decisions do not provide a complete inventory of everything seized. They make clear, however, that electronic storage devices were among the items and that the suspect specifically contested access to a mobile phone she had purchased herself, arguing that it was nevertheless protected because she used it for her consular work.
On July 21, 2025, the consular employee appealed both the original search order and the seizure or temporary securing of the material. Her principal defense was that she was an administrative employee of the Turkish Consulate General rather than merely an unprotected local employee and therefore enjoyed immunity under Article 43(1) of the Vienna Convention on Consular Relations.
She also argued that the seized devices and records were principally items she used professionally and were consequently protected under Article 33 of the Vienna Convention, which guarantees the inviolability of consular archives and documents. She demanded their return.
On July 25 the BGH investigating judge refused to change his position and referred the appeal to the court’s criminal senate. On the same day, in a separate order, he formally approved the temporary retention of the items for examination. That July 25 order subsequently became the subject of the second appeal and ultimately the September 3 ruling. On August 21, 2025, a three-judge BGH panel rejected the challenge to the search warrant.
It agreed that she fell within the Vienna Convention’s definition of administrative personnel working at a consular post. The fact that she had been locally hired rather than posted to Germany through the Turkish diplomatic service did not remove her from the convention’s general scope.
But that did not mean she enjoyed immunity. The BGH emphasized that the woman had moved to Germany in 1995, had resided there continuously for approximately 17 years before being recruited by the consulate in 2012 and had possessed permanent residence since at least 2005. She therefore qualified as a person permanently resident in the receiving state for purposes of the Vienna Convention.
That meant her status was governed not by the broad functional immunity invoked under Article 43 but by the more restrictive rules in Article 71.
Since she was an administrative employee rather than a consular officer, the court concluded that Article 71(2) applied. Personnel in that category who are permanently resident in the host state receive only such privileges and immunities as the receiving state chooses to grant, and German domestic law did not give her the immunity she claimed.
The court said provisions in her current employment contract did not alter that conclusion. It also recorded that the German Foreign Office had expressed the same view in an email dated July 10, 2025, specifically addressing the case.
The judges separately considered whether broader international rules on immunity for officials acting on behalf of foreign states could shield her. They concluded that they could not because, under German jurisprudence, general functionary immunity deriving from state immunity does not apply to espionage activity.
The decision thus has implications beyond this individual case: A foreign government cannot automatically insulate alleged intelligence activity in Germany merely by embedding the person involved in an official diplomatic or consular structure.
The court rejected the argument that employment by a Turkish consulate automatically shielded the locally hired employee from investigation for suspected espionage.
The BGH found that the seriousness of suspected foreign-intelligence activity and the strength of the initial evidence justified the intrusion associated with searching her residence.
The dispute did not end with the August ruling. The employee had filed another appeal on August 4, 2025, challenging the July 25 order that allowed investigators to retain and review the material seized from her residence.
She again argued that she had consular protection and added that the search order had rested on speculation. She maintained that her personally purchased mobile phone should be regarded as protected consular material because she used it for work. She also rejected prosecutors’ analogy between consular records and protected defense documents, emphasizing the sensitivity of consular archives.
On September 3, 2025, a panel of judges rejected that appeal, ordering her to bear the costs of the proceeding. The second ruling produced an important interpretation of how investigators must handle potential diplomatic or consular material found during a criminal search.
The court also ruled that investigators were entitled to remove the devices from the residence for analysis because determining their evidentiary relevance could not reasonably be completed during the search itself. German investigators retain discretion over the method, extent and duration of that review, provided that they remain within legal limits.
The case adds to evidence of an increasingly aggressive Turkish surveillance campaign targeting political opponents and diaspora communities abroad.
The court proceedings show that German authorities had developed evidence sufficiently specific for the BGH to endorse an investigation into an alleged chain running from a German police employee to a Turkish consular worker and from the consular structure toward MIT.
The BGH record describes a permanent MIT intelligence residency staffed by professional intelligence officers inside the Turkish consulate; a locally recruited consular employee allegedly providing administrative and logistical assistance to MIT; research and intelligence-related reports allegedly entering the Turkish security bureaucracy; physical monitoring of events considered critical by the Turkish consulate; a relationship with a Cologne policewoman dating back to at least 2021; telephone and encrypted-messenger communications; alleged transmission of internal police information between March 2024 and February 2025; information on anti-Turkish and anti-Islamic incidents; material about internal German police matters; counterintelligence evidence obtained by the NRW domestic intelligence service; and G10 surveillance records documenting communications between the two suspects.
The German court’s description of MIT’s place within the Turkish state is itself notable. Rather than treating the agency merely as a conventional national-security institution, the ruling states that MIT serves the Turkish government, the president and the ruling AKP in the pursuit of government policy as well as internal security and intelligence gathering.
That assessment, combined with the allegation that consular personnel observed politically sensitive events in Germany and generated reports, gives the investigation a broader significance for concerns over Ankara’s surveillance of Turkish and Kurdish communities abroad.
Viewed along with at least half a dozen other recent cases in which operatives were accused of gathering intelligence on German soil for Turkey, the case points to an increasingly aggressive overseas surveillance campaign by Turkish intelligence, conducted as the Erdogan government systematically dismantles virtually every center of opposition at home to preserve its repressive grip on power.
Published originally on August 24, 2026, under the title “Germany Exposed MIT Intelligence Cell Inside Turkish Consulate, Police Network.”
