Interpol Notices: A Quick Reference to Key Terms and Options

This reference entry defines the core Interpol notice terms and the legal option attached to each, so readers can identify a term quickly and know what step it typically calls for. The definitions below are grouped in alphabetical order and kept deliberately short. Where a notice intersects with extradition to Australia, the practical response is usually legal rather than administrative, and readers who need to confirm how a specific notice is treated can check this website for the firm’s own explanation of the process.

A to C: Red, Blue, and Diffusion Notices

Red Notice. A Red Notice is a request circulated by Interpol to its member countries asking them to locate and provisionally arrest a person pending extradition, surrender, or similar lawful action. It is not an international arrest warrant in itself; it is a request that each member country applies its own law to. The legal option attached to a Red Notice is to challenge the underlying request at the national level, and where Australia is the requesting state, to obtain advice on whether the notice is supported by a valid extradition request. The key point for readers is that a Red Notice can be reviewed and, in some cases, removed or restricted if it does not meet Interpol’s own rules.

Blue Notice. A Blue Notice asks member countries to collect information about a person’s identity, location, or activities in relation to a criminal investigation. It is not an arrest request. The legal option attached to a Blue Notice is limited but real: a person may ask for disclosure of what is being collected and may challenge the notice if it is being used for political, military, religious, or racial purposes, which Interpol’s constitution prohibits.

Diffusion Notice. A Diffusion is a less formal alert circulated directly by a member country to other countries, often before or instead of a formal notice. It can function like a Red Notice in practice. The legal option attached is to determine which country issued it and on what legal basis, then to seek review through that country’s authorities or through Interpol’s channels. Diffusions are frequently the first sign a person has that a foreign state is looking for them.

E to P: Extradition, Provisional Arrest, and Public Notices

Extradition Request. An extradition request is a formal diplomatic and legal demand by one state that another state surrender a person for prosecution or sentencing. It is distinct from an Interpol notice, though the two often travel together. The legal option attached is a full judicial hearing in the requested state, where the person may contest the request on grounds such as double criminality, political offence, human rights, or the absence of a valid treaty. Australia’s treaty partners and the European countries from which extradition to Australia may occur are relevant here, and a consultation with an extradition lawyer is the standard next step.

Provisional Arrest. Provisional arrest is an emergency arrest made before the full extradition paperwork arrives, usually based on a Red Notice or a Diffusion. The legal option attached is time-sensitive: the person is typically held while the requesting state formalises its request, and a challenge must be prepared within short statutory deadlines. Missing those deadlines can foreclose arguments that would otherwise be available.

Public Notice. A Public Notice is Interpol’s way of asking the public for help locating a person, often in connection with serious crimes. It is not an arrest instrument. The legal option attached is to verify whether the notice is accurate and whether it complies with Interpol’s rules, and to seek correction or removal where it does not. Public notices carry reputational consequences that can be as damaging as the legal ones.

S to Y: Silver, Yellow, and the Review Process

Silver Notice. A Silver Notice is used to trace and identify criminal assets and proceeds. It is not directed at a person’s liberty in the same way as a Red Notice. The legal option attached is to address the asset-freezing or confiscation proceedings in the relevant jurisdiction, since the notice itself is a tracing tool rather than an arrest request.

Yellow Notice. A Yellow Notice concerns missing persons, including cases where a person has been abducted or has disappeared. The legal option attached is to provide information to the issuing country and to Interpol so that the record is accurate. Where a person has been wrongly listed, the remedy is correction rather than defence.

Commission for the Control of Interpol’s Files (CCF). The CCF is the independent body that reviews requests to access, correct, or delete data held by Interpol. It is the main avenue for challenging a notice that is alleged to be politically motivated, factually wrong, or disproportionate. The legal option attached is a formal application to the CCF, usually prepared with legal assistance, supported by evidence that the notice breaches Interpol’s rules. The CCF does not hear the underlying criminal case; it reviews the notice’s compliance with Interpol’s own framework.

Read together, these terms describe a single system with several entry points. A Red Notice or Diffusion may lead to provisional arrest; provisional arrest may lead to a formal extradition request; and the request is tested in a domestic court rather than at Interpol. The CCF sits alongside that process as the data-remedy track. Because the consequences of a notice are felt immediately, the practical value of this glossary is in recognising which term applies and which option follows. Readers who need the Australian-specific version of that analysis, including which countries may send extradition requests to Australia and how a defence is structured, should obtain tailored advice rather than rely on a general definition. The definitions above are a starting point for that conversation, not a substitute for it.