How crime scene photos can provide valuable clues during an investigation. Join forensics experts and criminal investigators to solve the case. #NewDetectives #TrueCrime #Photography Season 2 Episode 2, aired in 1997: Forensic photographers are amongst the first people at a crime scene, capturing vital clues on film. What do the cameras capture that can't be seen first-hand and who are the men and women who analyse these camera clues? The New Detectives is an American docudrama where world-renow

Tonight’s ALL-NEW 20/20 explores how DNA proved vital in solving a 23-year-old cold case. Using groundbreaking forensic genealogy, Montgomery County Detectives Alyson Dupouy and Tara Augustine traced the DNA beneath Leslie Preer’s fingernails, revealing a connection that stunned the investigation. Stephanie Ramos reports for the all-new 20/20 “First Comes Love, Then Comes Murder” premiering tonight, Sept. 12th at 9/8c on ABC. Stream this weekend on Disney and Hulu. | ABC 20/20