Indian scouts, though heavily relied upon for reconnaissance, translations, and insight into Indian psychology, were usually treated as outsiders by the army they served (even though many scouts were themselves ex-soldiers). Allowed to roam freely during forays into Indian territory, scouts were rarely subject to laws or rules of behavior. In battle, some would rob or mutilate the dead as a warning to Indians considering further uprisings. Mostly, scouts served as advance men for columns of soldiers, and although their advice was often heeded, General George Custer (whose scouts are shown here in this engraving) ignored warnings of enemy strength at Little Bighorn.