Certain requests used by Interpol are sent by forms of Notices. The color of each notice determines the type of information being sent or received by Interpol and its members. Here are the notices and the type of information they contain.
Red notices are used to ask for a criminal found in one county to be arrested because of an arrest warrant found in another country called extradition. This is used as a new age wanted poster.
Blue notices are requests from one country to ask if any other country in Interpol knows any specific information about a person, so the country sending it can find information on a suspect of a crime. These are also used in kidnappings.
Black notices are sent by countries that are requesting any information from any other country to identify a deceased person that is not in that country's records.
Green notices are warnings from one country to another to warn that a suspect is traveling to that country and might commit another crime. This information is used to have police keep an eye on that person.
Yellow notices are used to help locate missing persons that are being searched in a country. They are also used to identify persons who cant identify themselves.
Orange notices are used to warn countries or their governmental facilities of an attack from concealed explosives that can be devastating.
The notices are from the Interpol website.
This site was last updated 02/13/06