HomeAs of 2025, Interpol has 196 member countries. That covers virtually every UN-recognized sovereign state in the world. The organization grew from 150 members in 1989 to its current size through steady expansion, with South Sudan, Palestine, and Kiribati among the most recent additions.
Interpol Members by Region
Interpol divides its members into five geographic regions. Each region elects representatives to the Executive Committee, which oversees the organization between General Assembly sessions.
| Region | Members | Examples |
|---|---|---|
| Africa | 54 | Nigeria, Kenya, South Africa, Egypt, Algeria |
| Europe | 50 | UK, Germany, France, Italy, Spain, Poland |
| Asia | 45 | China, Japan, India, Iran, Thailand, South Korea |
| Americas | 35 | USA, Canada, Brazil, Mexico, Argentina, Colombia |
| Oceania | 10 | Australia, New Zealand, Fiji, Papua New Guinea |
Some territories participate in Interpol despite not being fully sovereign. Aruba, Curacao, and Sint Maarten joined as constituent countries of the Kingdom of the Netherlands. Under Article 4 of the Interpol Constitution, dependent territories may apply if they meet the criteria and receive endorsement from the responsible state.
How a Country Joins Interpol
The process is straightforward in principle, but politically contingent in practice. Under Article 4 of the Interpol Constitution, any sovereign state may apply for membership. The application goes to the General Assembly — Interpol’s highest governing body — where approval requires a two-thirds majority vote.
Once admitted, the new member designates a National Central Bureau (NCB). The NCB is the official point of contact between the country’s national police and Interpol’s General Secretariat in Lyon. All formal Interpol communication — notice requests, database queries, fugitive alerts — flows through the NCB.
Countries that lack the political support of two-thirds of the General Assembly cannot join, regardless of institutional readiness. Kosovo and Taiwan remain outside the organization not because of legal ineligibility, but because opposing states block their admission at the vote.
Does Membership Mean Automatic Cooperation?
No. This is one of the most common misconceptions about Interpol.
Interpol notices — including Red Notices — are not legally binding. A Red Notice requests that member countries locate and provisionally arrest a person, but each country decides whether to act based on its own national law, bilateral treaties, and domestic legal procedures. There is no enforcement mechanism for non-compliance.
A country may decline to act on an Interpol notice for several reasons:
- The offence is considered political under Article 3 of the Interpol Constitution
- National law does not criminalise the conduct in question (dual criminality principle)
- The person holds citizenship that the country is unwilling to extradite
- A domestic court has found the notice unlawful
- Diplomatic considerations override the request
Membership creates the infrastructure for cooperation — shared databases, secure communication, joint operations — but the decision to cooperate on any specific request remains sovereign.
What Interpol Membership Means for Extradition from Thailand
Key point: Thailand’s extradition decisions are governed by the Extradition Act B.E. 2551 (2008) and bilateral treaties — not by Interpol membership status alone. A Red Notice from an Interpol member country does not automatically trigger extradition proceedings in Thailand.
When Thailand receives a Red Notice, its NCB (the Royal Thai Police) assesses the request. If the requesting country has a bilateral extradition treaty with Thailand, a formal extradition request can follow. If no treaty exists, Thailand may still extradite based on reciprocity — or decline entirely.
The fact that 196 countries are Interpol members means a person flagged by any of them can, in principle, be located through Thailand’s border screening systems. But location through Interpol and extradition to the requesting country are two separate legal steps governed by different frameworks.
A lawyer specialising in extradition defence in Thailand can assess whether a specific country’s Interpol notice creates an actual extradition risk — and what legal options exist to challenge it.
Can Interpol Membership Be Revoked?
In principle, yes. The General Assembly can suspend or expel a member that fails to meet the organisation’s standards. In practice, formal suspensions have been rare. The more common scenario is internal pressure — the Commission for the Control of Files (CCF) reviewing and deleting notices that violate Interpol’s rules — rather than action against the member state itself.
Countries with documented records of misusing the Red Notice system — submitting politically motivated notices targeting dissidents, journalists, or business rivals — have faced scrutiny from the CCF, but formal membership revocation has not occurred in recent history.
Facing Interpol membership questions? The firm’s CCF challenge and Red Notice removal practice covers every stage — from the first provisional arrest to the final Ministerial decision. Early legal intervention provides the most options.
Frequently Asked Questions
How many countries are in Interpol in 2025?
Is Thailand a member of Interpol?
Does a Red Notice automatically lead to arrest in Interpol member countries?
Can a person challenge a Red Notice issued by an Interpol member?
Which region has the most Interpol members?
If a Red Notice from any Interpol member country creates a risk of detention in Thailand, legal options exist — both through Interpol’s internal complaint mechanism and through Thai courts. A Red Notice challenge addressed to the CCF can result in deletion or correction of the notice regardless of which member state issued it.
