Notice type Details Red Notice To seek the location/arrest of a person wanted by a judicial jurisdiction or an international tribunal with a view to his/her extradition Blue Notice To locate, identify or obtain information on a person of interest in a criminal investigation Green Notice To warn about a person's criminal activities if that person is considered to be a possible threat to public safety Yellow Notice To locate a missing person or to identify a person unable to identify himself/herself Black Notice To seek information on unidentified bodies Orange Notice To warn of an event, a person, an object or a process representing an imminent threat and danger to persons or property Purple Notice To provide information on modi operandi, procedures, objects, devices, or hiding places used by criminals Interpol-United Nations Security Council Special Notice To inform Interpol's members that an individual or an entity is subject to UN sanctions