Crime scene investigations are often thought of as being about the DNA left behind in traces of blood, hair or skin cells, but in the first story, it was the site itself, that provided the biggest clue to detectives. Police asked for help from Patricia Wiltshire, a forensic ecologist. The partner of the missing woman initially claimed he had killed her by mistake but couldn't remember where he had buried her body. Patricia was given access to his car and footwear, and was able to use her botany skills to pinpoint where the body of the missing woman was and help prove it was murder. And in Melsonby, a woman was found dead in the home she shared with her husband above a post office. Her husband claimed that she had been held hostage, but the time frame didn’t fit. The police asked Jo Millington, an expert in blood spatter analysis, for help. Jo showed that the direction of blood at the crime scene meant there may never have been a break in, and the husband was convicted of murder.