Luther is a British crime series that first broadcasted on BBC One in 2010. Detective Criminal Inspector John Luther (Idris Elba from The Wire) is a brilliant but obsessive London policeman with a hot-temper who struggles with his home and work life as he hunts down sadistic and dangerous criminals.
Daniel Sugarman (Ross McCall), the American Diamond Thief in Episode 5, carries a Beretta 92FS Inox. It is later taken from him and used by DCI John Luther (Idris Elba) and DCI Ian Reed (Steven Mackintosh). An officer describes it as being a "9mm Beretta".
The murder weapon in the Pilot is found to be Glock 26. DCI Ian Reed (Steven Mackintosh) disassembles one for DCI Luther's benefit, describing it as a "Glock 26 lightweight compact pistol, weighs less then 16 ounces, carbon steel spring and barrel, polymer frame and components". Luther later determines that the Glock was chosen because the barrel could be melted down; the murder weapon was placed in the throat of a dog with the knowledge that it would be cremated.