Interpol issues eight types of Notices, each with a specific function:
1) Red Notice: To locate and arrest a person wanted for extradition.
2) Yellow Notice: To find a missing person or identify someone unable to self-identify.
3) Blue Notice: To find, identify, or gather information on a person in a criminal investigation.
4) Green Notice: To alert about a person's criminal activities posing a public safety threat.
5) Orange Notice: To warn of imminent threats to people or property.
6) Purple Notice: To share details on criminals' methods and tools.
7) Black Notice: To seek information on unidentified bodies.
8) Interpol-UN Security Council Special Notice: To notify members of individuals or entities under UN sanctions.