Read all about it. Professor Vincent Marks, a world expert on insulin who has assisted in some high profile cases of insulin murder, has written a book - the 'Insulin Murders - True Life Crimes'.
The first recorded incident of insulin used for murder was in 1957, and since then there have been about 50 cases globally of insulin being used for murder. Although insulin can be used to kill, Professor Marks said it was actually a very poor murder weapon. Detecting its use was difficult, but not as many assumed...impossible.
It is not a very good weapon especially nowadays. More tests are available to prove the misuse of insulin. If a non-diabetic is dead on arrival without a usual suspect - I suggest the coroner check the patient's blood sugar. If that's hovering around absolute zero I'd put a request in for the insulin antibody kit!
