Interpol notices:

Red Notice:-
To seek the location and 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.