A couple murdered on the orders of a gangland boss had been offered inadequate protection by the police, a report has concluded.
John and Joan Stirland were shot dead at their seaside bungalow in Lincolnshire a few months after fleeing their previous home when it was targeted by gunmen.
Nottinghamshire Police had to bug one of its own police stations during the inquiries into the city's problem with major crime. The device caught DC Charles Fletcher talking to associates of Colin Gunn about police investigations and what information he could get for them from computers.
The BBC's Inside Out programme obtained the recordings.