History of forensic science

Lynette Deborah White (5 July 1967 – 14 February 1988) was murdered on 14 February 1988 in Cardiff, Wales. South Wales Police issued a photofit image of a bloodstained, white male seen in the vicinity at the time of the murder but were unable to trace the man. In November 1988, the police charged five black and mixed-race men with White's murder, although none of the scientific evidence discovered at the crime scene could be linked to them. In November 1990, following what was then the longest murder trial in British history, three of the men were found guilty and sentenced to life imprisonment.

Angela Mary Cecilia Gallop CBE FRSB (born 2 January 1950) is a British forensic scientist. She began her career with the Forensic Science Service in 1974. Since 1986, she has run her own forensic service companies. Her findings helped solve notorious cases such as the deaths of Roberto Calvi, Rachel Nickell, Lynette White, Damilola Taylor, and Gareth Williams. She also took part in the investigation of the death of Diana, Princess of Wales, finding no evidence to support theories of a conspiracy. She has been awarded the Order of the British Empire for her scientific contributions, detailed in her books, and has been portrayed on television.

Shirley Ann Duguay (October 11, 1962 – October 3, 1994) was a Canadian woman from Prince Edward Island who went missing in 1994 and was later found dead in a shallow grave.

In 1858 a batch of sweets in Bradford, England, was accidentally adulterated with poisonous arsenic trioxide. About five pounds (two kilograms) of sweets were sold to the public, leading to around 20 deaths and over 200 people suffering the effects of arsenic poisoning.