A Labrador named River lost her job as a guide dog after failing to control her passion to chase squirrels – but she retrained as a therapy dog and has become one of the first to be used in a new pilot scheme with the policeA Labrador named River lost her job as a guide dog after failing to control her passion to chase squirrels – but she retrained as a therapy dog and has become one of the first to be used in a new pilot scheme with the police