U.S. Air Force Special Agent Shelly Herold, Air Force Office of Special Investigations (AFOSI) 2nd Field Investigative Squadron forensic science consultant assigned to Joint Base Andrews, Maryland, right, explains blood patterns at Shaw Air Force Base, S.C., March 28, 2017. Forensic science consultants help process crime scenes and provide training to AFOSI detachments. (U.S. Air Force photo by Airman 1st Class Destinee Sweeney)