Josie Nunn, a PhD candidate in Forensic and Analytical Science, spoke to the physics students about her research into bruises. She described how the age of a bruise can be determined by shining a light onto it.
Josie then discussed how physics can be used to help decipher a crime scene, in particular blood splatters. Fluid dynamics and impact angles are just two of the ways blood splatters are investigated.
Blood splatters are also studied using maths, in particular trigonometry, as a way to build up a picture of what happened in a crime scene.