The History of INTERPOL: Global Police Cooperation Explained

The International Criminal Police Organization — universally known as Interpol — is the world’s largest international police body, connecting law enforcement agencies across 196 member states through shared databases, secure communications, and operational coordination that no individual national police force could replicate alone.^[1] Yet Interpol is also one of the most misunderstood institutions in global security: it is not a supranational police force, its agents carry no arrest powers, and its history includes a period of Nazi control that nearly destroyed it permanently. Understanding what Interpol actually is, what it does, and what it cannot do requires tracing its century-long evolution from a modest interwar cooperation experiment to a genuinely global crime-fighting infrastructure.

The Precursors: Anarchists, Fugitives, and the Need for International Order

The impulse to coordinate police across national borders preceded Interpol by several decades. The earliest attempt at a formal, permanent framework for international police coordination was the Police Union of German States, formed in 1851, which brought together police from various German-speaking states to track political dissidents and criminals who crossed the fragmented borders of pre-unification Europe.^[1] The problem was structural: crime respected no borders, but police authority stopped at each frontier.

The assassination of Empress Elisabeth of Austria in 1898 by an Italian anarchist in Geneva catalyzed the next serious effort. Italy hosted the Anti-Anarchist Conference of Rome later that year, bringing delegates from 21 European countries to create a formal structure for addressing the international anarchist movement. The 1904 follow-up meeting in St. Petersburg produced proposals for information exchange but no lasting institutional result. The first genuinely ambitious multilateral initiative came in 1914, when the International Criminal Police Congress met in Monaco, bringing diplomats and legal officials from two dozen countries to discuss international collaboration in criminal investigations, shared forensic standards, and extradition procedures.^[1] The Monaco Congress outlined twelve principles that would eventually form Interpol’s foundation. The First World War intervened before any institution could be built.

Founding in Vienna: 1923 and the ICPC

The organization that became Interpol was founded on September 7, 1923, at the close of a five-day International Criminal Police Congress in Vienna, spearheaded by Johannes Schober, President of the Viennese Police Department.^[1] The 22 delegates agreed to establish the International Criminal Police Commission (ICPC), headquartered in Vienna. Founding members included police officials from Austria, Germany, Belgium, Poland, China, Egypt, France, Greece, Hungary, Italy, the Netherlands, Japan, Romania, Sweden, Switzerland, and Yugoslavia. The United Kingdom joined in 1928; by 1934, the ICPC’s membership had more than doubled to 58 nations.

The ICPC’s early mandate was pragmatic and operational: facilitate the exchange of information on wanted criminals, standardize criminal record formats to allow cross-border identification, and streamline extradition requests. In its first years, the commission published wanted person notices in its International Public Safety Journal and began creating the shared databases that remain Interpol’s core function a century later. The United States did not formally join until 1938, though American police officers had attended the 1923 congress in an unofficial capacity.^[1]

Nazi Control: The Dark Chapter (1938–1945)

The most troubling episode in Interpol’s history began with the Anschluss of March 1938, when Nazi Germany annexed Austria and the Vienna-based ICPC fell under the control of the Third Reich. The commission’s leadership passed successively to SS generals: Otto Steinhäusl, then Reinhard Heydrich — the architect of the Holocaust who simultaneously served as head of the Reich Security Main Office — then Arthur Nebe, and finally Ernst Kaltenbrunner, the highest-ranking SS officer executed after the Nuremberg trials.^[1]

By November 1941, the ICPC had offices at Am Kleinen Wannsee 16 in Berlin; in 1942, the headquarters were formally relocated to Berlin and eventually moved to the same building as the Gestapo. Most member states withdrew their participation during this period. The organization that had been created to fight international crime became an instrument of a regime committing the worst crimes in European history. The ICPC was, in practical terms, defunct as a cooperative police body for the entire duration of the war.^[2]

This history carries a legacy that shaped Interpol’s postwar constitutional design. The strict prohibition on political interventions embedded in Article 3 of Interpol’s constitution — forbidding the organization from engaging in matters of a “political, military, religious, or racial character” — was written explicitly to prevent any repetition of the 1938–1945 period, when Interpol’s machinery had been weaponized by a government using police cooperation as a tool of political persecution.

Postwar Revival and the 1956 Constitution

In 1946, following the end of World War II, officials from Belgium, France, Scandinavia, the United States, and the United Kingdom revived the organization as the International Criminal Police Organization (ICPO), establishing new headquarters in Paris.^[1] The reconstituted ICPO drew on the ICPC’s original cooperative framework while rebuilding its membership and operational infrastructure from scratch, shedding the taint of Nazi leadership and attracting the participation of newly independent postwar states.

The organization’s defining modern document was adopted a decade later. In 1956, the ICPO adopted a new constitution and took the name “Interpol” — derived from its telegraphic address, which had been “INTERPOL” since 1946.^[1] The 1956 constitution established the governance structure that persists today: a General Assembly as the supreme governing body, meeting annually with all member countries; an Executive Committee elected by the General Assembly; and a General Secretariat responsible for day-to-day operations. In 1967, headquarters moved from Paris to Saint-Cloud; in 1989, they relocated to their current site in Lyon, France.

Structure: How Interpol Actually Works

Interpol’s organizational structure reflects its unusual hybrid character: an international body that must work through national police agencies that retain full sovereign independence. The General Secretariat, headquartered in Lyon, coordinates daily activities and is staffed by approximately 1,050 personnel drawn from over 130 nationalities, including both police officers and civilian specialists.^[2] The Secretariat is led by a Secretary-General; the current holder is Valdecy Urquiza of Brazil, a former senior law enforcement official. Day-to-day governance oversight is provided by a President, currently Lucas Philippe of France, elected by the General Assembly.

The operational backbone of Interpol’s national presence is the National Central Bureau (NCB) system. Each of Interpol’s 196 member states maintains an NCB as its single point of contact with the General Secretariat and with other member countries’ NCBs. NCBs are staffed by national police officials and typically sit within the ministry responsible for policing. This design is deliberate: it routes all Interpol communication and operational requests through nationally accountable law enforcement officials rather than through an independent international police force that could operate outside domestic legal frameworks.^[1]

The technical infrastructure enabling this network is the I-24/7 system: an encrypted, internet-based worldwide communications network that allows Interpol’s General Secretariat, NCBs, and in some countries airport and border control officials to contact each other and access Interpol’s databases in real time. The I-24/7 network was a transformative upgrade from the older messaging systems it replaced, enabling the kind of rapid, routine information exchange that makes Interpol’s notice system operationally meaningful rather than merely bureaucratic.^[1]

The Notice System: Red Notices and Beyond

Interpol’s most publicly known tool is the Red Notice — a request to law enforcement worldwide to locate and provisionally arrest a person pending extradition. Red Notices are the closest thing Interpol produces to an international arrest warrant, but they are not arrest warrants: no Interpol official can compel a national police force to make an arrest, and member countries are free to decline Red Notice requests if their national laws do not permit the underlying offense or if the request is determined to have political motivations.^[3]

Interpol issues seven color-coded notice types, plus a special UN Security Council notice. Red Notices request the location and arrest of wanted persons. Blue Notices request information about a person’s identity, location, or activities. Green Notices provide warnings about persons who have committed criminal offenses and may repeat them in other countries. Yellow Notices help locate missing persons. Black Notices seek information about unidentified bodies. Orange Notices warn of potential threats from persons, objects, or events. Purple Notices provide information about criminal methods and procedures.^[3] As of 2019, there were 62,448 valid Red Notices and 12,234 Yellow Notices in circulation worldwide.

The notice system’s database infrastructure extends well beyond wanted persons. Interpol’s lost and stolen travel document database contains more than 12 million records. The organization maintains fingerprint and facial recognition databases, DNA sample collections, and criminal history records accessible to authorized law enforcement in real time through I-24/7. These databases are the operational heart of Interpol’s daily utility to member police forces: most of the organization’s practical value lies not in dramatic fugitive arrests but in routine border checks, identity verifications, and criminal history lookups that prevent criminals from exploiting the gaps between national databases.^[2]

Operational Priorities: Terrorism, Cybercrime, and Organized Crime

Interpol’s operational mandate focuses on three broad categories of transnational crime: terrorism, cybercrime, and organized crime, supplemented by a significant focus on financial crime and anti-corruption.^[2] The terrorism priority, elevated after the 2001 attacks, involves sharing intelligence on foreign terrorist fighters, coordinating the exchange of biometric data on suspects, and supporting national investigations into terrorist financing networks. Interpol’s foreign terrorist fighter database became a critical tool for tracking ISIS-affiliated fighters who traveled between conflict zones and Western countries in the 2010s.

The cybercrime mandate reflects the reality that digital crime is intrinsically transnational: ransomware networks operate across dozens of jurisdictions simultaneously, and the criminals running them exploit legal gaps between countries with different definitions of cybercrime and different capacities to investigate it. Interpol’s Global Complex for Innovation in Singapore, opened in 2015, serves as the organization’s center for cybercrime research, digital forensics training, and operational support for member countries investigating online criminal networks.^[1]

Organized crime operations have included major coordinated actions against drug trafficking networks, human trafficking organizations, and the trade in counterfeit pharmaceuticals. Operation Pangea, a recurring coordinated action against online pharmacies selling counterfeit or unauthorized medicines, has over multiple annual iterations resulted in the arrest of thousands of individuals and the seizure of hundreds of millions of substandard medical products. These operations illustrate Interpol’s genuine operational value: the coordination infrastructure that allows dozens of national police forces to execute simultaneous enforcement actions that no single country could mount alone. This cross-border coordination model shares architectural DNA with the intelligence-sharing arrangements analyzed in our profile of the Five Eyes Alliance and how the US, UK, Canada, Australia, and New Zealand share intelligence.

Controversies: Political Abuse of the Red Notice System

Interpol’s political neutrality mandate has been tested repeatedly by member states that have attempted to use the Red Notice system for purposes that critics characterize as political persecution rather than legitimate law enforcement. The most systematic documented pattern of Red Notice abuse involves authoritarian governments seeking to locate and pressure political dissidents, journalists, and businesspeople living in exile in Western countries.^[4]

Russia, China, Turkey, and several Central Asian states have been identified by human rights organizations and academic researchers as the most frequent issuers of politically motivated Red Notices. The pattern was documented extensively by Fair Trials International and other organizations: a dissident leaves a country after falling out with the government, the government issues a Red Notice through Interpol alleging criminal conduct, and the dissident is arrested during routine border crossings in a third country while awaiting extradition proceedings that their lawyers argue are politically motivated. Interpol created a Commission for the Control of INTERPOL’s Files (CCF) specifically to review complaints from individuals who believe their Red Notices were issued in violation of the political neutrality rules — though critics argue the CCF’s resources have historically been insufficient to address the volume of complaints.^[1]

The organization has acknowledged the problem and implemented reforms. In 2015, Interpol adopted new rules prohibiting the use of Red Notices in cases involving asylum seekers and refugees, and strengthened its review process for notices issued by states with documented histories of abuse. The reforms have been praised by human rights advocates as meaningful improvements, while critics note that the systemic pressure from powerful member states that fund a significant portion of Interpol’s budget creates structural incentives that make full enforcement of the political neutrality rules difficult to guarantee.

The Nazi War Criminal Non-Intervention: A Postwar Controversy

One of the most historically significant controversies in Interpol’s postwar history was its decades-long refusal to assist in the prosecution of Nazi war criminals. Until the 1980s, Interpol declined to issue notices for Nazi perpetrators on the grounds that the crimes involved were “political” in nature under Article 3 of its constitution — the same article designed to prevent political abuse of the notice system.^[1]

This interpretation outraged Holocaust survivors and human rights advocates, who argued that mass murder and genocide were paradigmatically criminal rather than political offenses. The practical effect was that individuals responsible for some of the worst crimes of the 20th century were able to live openly in several countries for decades, largely beyond the reach of coordinated international law enforcement. The controversy illustrated a fundamental tension in Interpol’s constitutional design: the provisions designed to prevent the organization’s weaponization for political persecution simultaneously created space for it to decline involvement in prosecuting the most extreme political violence.

Interpol and Intelligence Agencies: A Critical Distinction

A persistent popular misconception conflates Interpol with intelligence agencies. Interpol is a police cooperation body, not an intelligence organization. Its mandate is law enforcement: arrest warrants, criminal databases, fugitive location, forensic support. It does not conduct surveillance operations, run human intelligence networks, collect signals intelligence, or engage in the covert activities that define the work of agencies like the CIA, MI6, or the NSA.^[1]

The distinction matters because the legal and oversight frameworks governing the two types of institutions are fundamentally different. Law enforcement agencies operate within criminal procedure systems with rights-based constraints: evidence must be admissible, arrests must be lawful, and individuals have procedural protections that intelligence collection deliberately avoids. Intelligence agencies, by contrast, operate in the shadows of legal frameworks specifically designed to allow collection activities that could not survive criminal procedure scrutiny. Interpol sits firmly in the law enforcement world, even when the crimes it addresses overlap with national security concerns. The NSA’s parallel mandate in the signals intelligence domain is analyzed in our profile of the NSA: from signal intelligence to global surveillance, which illustrates the contrast between how intelligence collection and law enforcement cooperation are structured at the global level.

Governance, Funding, and the Member State Problem

Interpol’s governance model creates inherent structural tensions. The organization is funded primarily by annual contributions from member states, with total annual budget approximately €176 million as of 2023.^[1] Major contributing states exercise influence over the organization’s priorities and leadership that smaller members cannot match. The election of Meng Hongwei, a senior Chinese security official, as Interpol president in 2016 illustrated the risk: Meng was detained by Chinese authorities in 2018 under circumstances that Chinese officials described as corruption investigations but international observers widely characterized as political, and he resigned from the Interpol presidency while in Chinese custody — a sequence that raised serious questions about Chinese government influence over the organization’s senior leadership.

The Meng affair prompted Interpol to introduce governance reforms including new rules governing the election of the president and strengthened protections for the Secretary-General’s independence from member state pressure. The episode highlighted the challenge that any international organization faces when powerful member states with authoritarian governance traditions seek leadership positions in bodies whose mandate is predicated on political neutrality and the rule of law.

Interpol in the Contemporary Era

A century after its founding in Vienna, Interpol operates as a genuinely indispensable component of the global law enforcement architecture, even as its limitations remain clearly defined. The I-24/7 network connects police in 196 countries in real time; the notice system generates thousands of arrests annually; and the organization’s databases provide law enforcement with access to criminal records that would otherwise remain locked within national systems. The Global Complex for Innovation in Singapore has made Interpol a meaningful actor in the fight against cybercrime. Operations against human trafficking, illegal arms, and counterfeit pharmaceutical networks demonstrate that Interpol’s coordination model produces concrete enforcement outcomes.^[2]

The challenges Interpol faces in the contemporary era are both structural and geopolitical. The political abuse problem remains unresolved despite reforms; authoritarian member states retain incentives to use the notice system to pursue exiles. The growing divergence between democratic and authoritarian visions of law enforcement — on questions ranging from cybercrime definitions to human rights standards — creates substantive disagreements within the General Assembly about what the organization’s operational priorities should be. And Interpol’s constitutional constraints, which prevent it from conducting intelligence collection or operating in politically contested domains, necessarily limit its utility in the hybrid threat environment where law enforcement and national security operations increasingly overlap. For a deeper examination of how national intelligence agencies have sought to fill those gaps, see our analysis of the complete history of the CIA: from OSS to modern day.

What Interpol provides — and what no bilateral or multilateral intelligence arrangement fully replicates — is a universal platform for police cooperation that operates across diplomatic divides. Countries that do not have diplomatic relations with each other can still exchange criminal records through their NCBs. Countries whose intelligence services regard each other with deep suspicion can still cooperate on fugitive location and extradition through Interpol’s neutral infrastructure. That functionality, however modest compared to the ambitions of intelligence alliances, represents a genuine and durable contribution to the global effort to hold transnational criminals accountable.