 Their case load therefore infrequently verges into the more "exciting" area of crime-related death.Nevertheless, one of the running gags of the programme was that the character originally played by Tracy-Ann Oberman, the anatomical pathologist Ruth Anderson, was secondarily credentialled as a forensic pathologist, but had so rarely used these skills that her deductive reasoning skills were faulty.Two other major themes can be seen throughout the history of the programme.