A wanted poster is a display of an individual who has committed a crime but has not yet been apprehended. Wanted posters typically displayed an image of the criminal and the crime they committed. Depending on the source they sometimes offered a warning or monetary reward.
Several wanted posters were displayed in Constable Odo's security office aboard Deep Space 9. (DS9: "Vortex", "If Wishes Were Horses", "The Forsaken", "Dramatis Personae", "Duet", "In the Hands of the Prophets")