HomeInterpol Diffusion Notice: Meaning, Checks and Removal
What an INTERPOL diffusion notice is (the diffusion meaning in INTERPOL terms), why it is used and how it differs from a Red Notice. The page explains how Diffusions are circulated between countries, how to find out whether one has been issued against you and how a request for deletion can be made, with an outline of how our solicitors can help.
Red NoticeLocate and arrest a person with a view to extraditionLearn more →
Blue NoticeCollect information about a personLearn more →
Green NoticeWarn about a person considered a dangerLearn more →
Yellow NoticeLocate a missing personLearn more →
Orange NoticeWarn of a serious and imminent threatLearn more →
Purple NoticeShare criminal modus operandiLearn more →
Black NoticeIdentify unidentified bodiesLearn more →
Silver NoticeLocate assets of criminal originLearn more →
INTERPOL–UN Special NoticeIndividuals and entities subject to UN Security Council sanctionsLearn more →
DiffusionRequest sent directly by a member countryYou are here
What is an Interpol Diffusion Notice?
A diffusion is an informal alert issued by one country to notify law enforcement agencies in other countries about a wanted person for arrest or investigation, helping to maintain international safety. Diffusions are transmitted through Interpol channels and recorded in the Organisation’s police databases. However, they are not publicly accessible, and that makes it difficult for civilians to know if a diffusion has been issued against them.
Diffusions serve purposes similar to INTERPOL notices, for example:
- To arrest, detain, or restrict the movement of a suspect or person awaiting extradition
- To locate or track an individual
- To gather further information
Diffusions must comply with INTERPOL’s Constitution and Rules on the Processing of Data, just like notices. The difference is that a member country’s National Central Bureau (NCB) circulates a diffusion directly — often only to one or a few selected countries — rather than the General Secretariat publishing it to all member countries.
The General Secretariat checks notices and diffusions for compliance with INTERPOL’s rules. Since 2016 a dedicated Notices and Diffusions Task Force has examined, among other things, compliance with Articles 2 and 3 of the Constitution, and since 2018 its role has included the continuing review of Red Notices and wanted-persons diffusions.
Differences Between Interpol Diffusions and Red Notices
A Red Notice is a formal request to locate and provisionally arrest a person pending extradition. Both Red Notices and diffusions include personal data (photographs, fingerprints, identification numbers) and judicial information related to judicial authorities (charges, arrest warrants, or convictions). However, a Red Notice is published by the General Secretariat and is visible to all member countries, whereas a diffusion notice is sent directly by the country that needs it — the core of the Interpol diffusion vs Red Notice difference.
An Interpol Red Notice is the more formal instrument, whereas a diffusion is a faster, less formal alert — but it is subject to the same data-protection and neutrality rules.
Key distinctions in the context of international cooperation include:
- Both Red Notices and diffusions are subject to Article 3 of INTERPOL’s Constitution, which prohibits activities of a political, military, religious or racial character
- Red Notices are formally recognised by law enforcement, but countries decide independently whether to act
- Diffusions are sent directly by a member country or organisation to selected states
Both mechanisms enhance international security but operate under different rules and objectives.
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Your situation requires immediate action. Contact our lawyers for a free consultation at [email protected] and learn what legal tools can help you challenge an INTERPOL diffusion and protect your rights.
How to Delete an Interpol Diffusion?
If you discover that a diffusion has been issued against you, there are several steps you can take to seek removal:
- Contact the issuing country: Reach out to the competent authorities of that country — for example the prosecutor or court that issued the underlying warrant — to have the warrant withdrawn and the diffusion cancelled. Seeking professional legal advice is essential to understand the necessary steps and assess your chances of success. Legal experts can prepare petitions and represent your interests before relevant institutions.
- Request assistance from your current country of residence: You can ask local authorities to contact Interpol on your behalf. In the UK, this requires the support of a qualified solicitor familiar with international law and Interpol procedures, as simple appeals may not be sufficient.
- Apply directly to the Commission for the Control of INTERPOL’s Files (CCF): This independent body checks whether INTERPOL’s processing of personal data complies with its rules and decides requests for access, correction and deletion. Since 26 March 2026, requests are submitted through the CCF’s online portal. Applications must meet Interpol’s strict standards and include all supporting documentation.
Interpol diffusion removal is a complex and lengthy process. Professional legal support is strongly recommended to navigate procedural nuances and maximise the likelihood of a successful outcome.
How to check if Diffusion is issued against me?
It is important to understand that neither a diffusion nor a Red Notice is, in itself, an international arrest warrant, as stated in Interpol’s files. Enforcement remains at the discretion of law enforcement authorities and authorised international entities in each of the Interpol member countries, considering their own laws and international obligations. Interpol does not publish diffusions publicly; they are sent directly to relevant countries.
To check whether a diffusion has been issued against you, the most reliable approach is to submit a formal request to the CCF. The request is made through the CCF’s online portal with a copy of an identity document; the CCF Statute provides for a decision on access within 4 months of the request being declared admissible. A UK-based solicitor can assist in preparing this request and provide up-to-date legal advice throughout the process.
Legal Support from Interpol Diffusion Lawyers
INTERPOL coordinates cooperation between law-enforcement bodies; it does not resolve private disputes. If you need to fight an Interpol diffusion, our solicitors provide:
- Legal consultation: Helping clients understand their rights and the best course of action
- Procedural support: Preparing applications, complaints, and other documentation in line with both international and national legal requirements
- Representation: Acting on behalf of clients in legal proceedings across multiple jurisdictions
Handling complex issues related to Interpol requires professional knowledge of international and domestic law. Our UK-based solicitors are familiar with the procedures for Red Notices and diffusions and can provide the legal advice necessary to protect your rights and navigate challenging situations.
Contact us today to receive expert support and guidance regarding INTERPOL diffusions and related legal matters.
Related services: Interpol Diffusion Notice Lawyers.
Frequently Asked Questions
What is an Interpol diffusion notice?
A diffusion is an informal alert sent by one member country through Interpol channels to law enforcement in other countries, for example to arrest, locate or gather information about a person. It is recorded in Interpol's police databases but is not published.
Interpol diffusion vs Red Notice: what is the difference?
A Red Notice is a formal request to locate and provisionally arrest a person pending extradition and has a more formal legal status. A diffusion is a less formal alert sent directly by a member country’s National Central Bureau to selected states rather than published by the General Secretariat. Both must comply with INTERPOL’s rules, including Article 3 of its Constitution.
How can I find out whether a diffusion has been issued against me?
Diffusions are not publicly accessible, so the most reliable route is a formal request to the Commission for the Control of INTERPOL's Files (CCF), giving your personal details and a clear statement of your objectives. A solicitor can help prepare the request.
Can an Interpol diffusion lead to an arrest?
It can. A diffusion is not in itself an international arrest warrant, but each member country decides whether to act on it under its own laws and international obligations, which may include detaining the person. In the UK, since 31 December 2020, a request from one of the specified countries certified by the National Crime Agency can lead to arrest without a domestic warrant (Extradition (Provisional Arrest) Act 2020).
How can a diffusion be removed?
Options include contacting the competent authorities of the issuing country, asking authorities in your country of residence for assistance, or applying to the CCF with full supporting documents. The process is complex, and the outcome depends on the facts and the grounds raised.
Can I fight an Interpol diffusion with a lawyer in the UK?
Yes. An Interpol diffusion lawyer can make an access request to the CCF to find out what data is held, and then a deletion request where the diffusion does not comply with INTERPOL’s rules — for example because the case is political or the underlying warrant has been withdrawn. Parallel steps may be needed in the issuing country and, if an arrest follows, in UK extradition proceedings.
