Sentence:  When the policemen arrest a man . . . if there is good reason to suspect him, they take his picture before they let him go. . . . Then they put the picture up in the <WSD>rogues' gallery</WSD> among the others, where everybody who comes there can see it. 
Meaning of the word marked with <WSD> tags:  A set of pictures of convicted or suspected criminals used in law enforcement investigations to help witnesses identify suspects.