|Other Retailer||Price Checked Time||Their Price in NZD||Our Price|
|Amazon UK||9 days ago||43.27||$19.97||You save $23.30|
|Amazon US||7 days ago||29.69||$19.97||You save $9.72|
Christopher Berry-Dee is an investigative criminologist, the director of The Criminology Research Institute and the owner of The New Criminologist, the world's most respected professional journal on all matters criminology. He lives in the U.K. and Russia. Steven Morris has immense knowledge of serial homicide, psychology, the causation of serial murder and internet crime in all its varied forms. He lives in England.