A puppy abandoned on the roadside in a cage at four months old has joined the police as a trained sniffer dog.
Chester the cocker spaniel was rescued by the RSPCA after he was found by a member of the public dumped in a metal crate with six other puppies on a grass verge in January.
The four cocker spaniels and two terrier crossbreed puppies were thought to have been deserted after having passed the age when they are most marketable.
