An Interpol notice is an international alert circulated by Interpol to communicate information about crimes, criminals, and threats by police in a member state (or an authorized international entity) to their counterparts around the world. The information disseminated via notices concerns individuals wanted for serious crimes, missing persons, unidentified bodies, possible threats, prison escapes, and criminals' modus operandi.

There are eight types of notices, seven of which are colour-coded by their function: red, blue, green, yellow, black, orange, and purple. The best-known notice is the red notice which is the "closest instrument to an international arrest warrant in use today". An eighth special notice is issued at the request of the United Nations Security Council.

More Info: en.wikipedia.org