How Interpol's colour-coded notices enable countries to share alerts and requests for information worldwide.

RED NOTICE

To seek the location and arrest of persons wanted for prosecution or to serve a sentence.

YELLOW NOTICE

To help locate missing persons (often minors) or to help identify persons who are unable to identify themselves.

BLUE NOTICE

To collect additional information about a person's identity, location or activities in relation to a crime.

BLACK NOTICE

To seek information on unidentified bodies.

GREEN NOTICE

To provide warning about a person's criminal activities, where the person is considered to be a possible threat to public safety.

ORANGE NOTICE

To warn of an event, a person, an object or a process representing a serious and imminent threat to public safety.

PURPLE NOTICE

To seek or provide information on modus operandi, objects, devices and concealment methods used by criminals.

UNITED NATIONS SECURITY COUNCIL SPECIAL NOTICE

Issued for groups and individuals who are the targets of UN Security Council Sanctions Committees.