Professor Angela Gallop is a forensic scientist who has helped solve some of the most notorious violent crimes in recent British history including the killings of Stephen Lawrence, Damilola Taylor and Rachel Nickell. After completing a degree in botany and a doctorate on the biochemistry of sea slugs, Angela joined the Home Office’s Forensic Science Service in 1974, and four years later attended her first crime scene, where 18-year-old Helen Rytka was killed by Peter Sutcliffe, the Yorkshire Ripper. Over the years cold cases became her speciality and in 1992 she investigated the death of the It...