Scottish forensic anthropologist and anatomist Professor Dame Sue Black has pioneered ways to use an image of someone's hands (often a criminal suspect's only visible physical feature) as a means of identifying them. These techniques have since been used in court to catch and convict paedophiles, who often share and trade images of their crimes online. Her earlier experiences in the Kosovo War also exposed her to the very worst in human nature as she worked to identify those murdered and found in mass graves. Dame Black is looking for 'citizen scientists' to help with her research by contributing images to the world's first searchable database of the anatomy and variations of the human hand. Information here. Content warning: This interview includes reference to child sexual abuse, violence and traumatic death.