A law that may have given Billy The Kid a few more months of life, long enough to build a legend is still a part of today's politics. The rich history of the Posse Comitatus law that separated military from law enforcement and forbids, in some cases, the use of military on American soil. , Music by Lee Rosevere, Squire Tuck and Lucas Gonze at freemusicarchive Learn more about your ad choices. Visit megaphone.fm/adchoices