Written in blood: How bloodstain 'tails' can point to significant, additional forensic details

Forensic science has captured the public imagination by storm, as the profusion of "true crime" media in the last decade or so suggests. By now, most of us know that evidence left at a crime scene, such as blood, can often reveal information that is key to investigating and understanding the circumstances around a crime--and that scientific methods can help interpret that information.