Silent Witness follows the work of forensic pathologist Dr. Sam Ryan, played by Amanda Burton. The series was created by an ex-police officer, Nigel McCrery - who has also publis 　　Silent Witness follows the work of forensic pathologist Dr. Sam Ryan, played by Amanda Burton. The series was created by an ex-police officer, Nigel McCrery - who has also published five Silent Witness novels based on the series 详情