An evidence board (also known as a "conspiracy board," "crazy wall," or "murder map") is a common background feature in thriller and detective fiction movies and TV.
[1][2] It features a collage of media from different sources, pinned to a pinboard or stuck to a wall, and frequently interconnected with string to mark connections.
[4] Evidence boards are associated in fiction with both detective activities and obsessional interests, including those of delusional individuals pursuing conspiracy theories[citation needed], hence the alternative names.
Evidence boards can be seen in numerous TV series, including Homeland, Fargo, Sherlock, The Bridge and True Detective.
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