forensics

noun, plural in form but singular or plural in construction

fo·ren·sics | \ fə-ˈren(t)-sikz, -ˈren-zikz

Medical Definition of forensics

: the application of scientific knowledge to legal problems especially : scientific analysis of physical evidence (such as evidence from a crime scene) In forensics, DNA is extracted from fluids or tissue found at a crime scene, often sperm or seminal fluid from the bodies or clothing of rape victims, or blood found at the scene of violent crime. — Christopher Joyce and Eric Stover, Witnesses from the Grave