In modern-day investigations, fingerprints are some of the most valuable clues in identifying a suspect. Automated fingerprint identification systems have reduced the time it takes to compare prints from hundreds of hours to a matter of minutes. Before the revolutionary introduction of automated analysis, investigators had to manually compare prints from a crime scene in order to exclude or implicate suspects in the commission of a crime. In May 1948, an unthinkable murder led to one of the most extensive mass fingerprinting operations in UK history. It solidified fingerprint comparison as one of the most accurate means of identification in criminal investigations…*** LISTENER CAUTION IS ADVISED ***   This episode was researched and written by Eileen Macfarlane.Edited by Joel Porter at Dot Dot Dot Productions.Script editing, additional writing, illustrations and production direction by Rosanna FittonNarration, editing assistance, additional writing, and production direction by Benjamin Fitton.To get early ad-free access, including Season 1, sign up for They Walk Among PLUS, available from Patreon or Apple Podcasts.Listen to our companion podcast ‘They Walk Among America' here: https://play.acast.com/s/they-walk-among-americaMore information and episode references can be found on our website https://theywalkamonguspodcast.comMUSIC: The Edge by Caleb Etheridge Sussex by Stephen Keech Bamburgh by Stephen Keech Salvation by Moments Quiet Desperation Part 2 by JCar Recognize by Grant Borland Growing Pains by Featherland Ripley by Falls Apex Program by Cody Martin Petalstone by Cody Martin Shadow Passage by Cody Martin Woven by Alice in Winter They Walk Among Us is part of the Acast Creator Network - https://www.acast.com/theywalkamongusSOCIAL MEDIA: Twitter - https://twitter.com/TWAU_PodcastFacebook - https://www.facebook.com/theywalkamonguspodcastInstagram - https://www.instagram.com/theywalkamonguspodcastSupport this show http://supporter.acast.com/theywalkamongus. Hosted on Acast. See acast.com/privacy for more information.