The International Police Organization ( INTERPOL) is the world’s largest police organization.
A Red Notice is a request to locate and provisionally arrest an individual pending extradition. It is not an international arrest warrant. INTERPOL does not issue arrest warrants.
Blue Notice is issued to collect additional information about a person’s identity, location or activities in relation to a crime whereas a Green Notice is to provide warnings and intelligence about persons who have committed criminal offences and are likely to repeat these crimes in other countries.
Yellow Notice is to help locate missing persons, often minors, or to help identify persons who are unable to identify themselves and a Black Notice is to seek information on unidentified bodies.
Orange Notice is issued to warn of an event, a person, an object or a process representing a serious and imminent threat to public safety whereas a Purple Notice is to seek or provide information on modus operandi, objects, devices and concealment methods used by criminals.