Livingstone represented the new breed of young graduates entering the police force , and frequently had a difficult relationship with Taggart as a result .
His original sidekick was Detective Sergeant ( DS ) Peter Livingstone ( Neil Duncan ) .
Detective Sergeant represented the new breed of young graduates entering the police force , and frequently had a difficult relationship with Taggart as a result .
His original sidekick was Detective Sergeant ( DS ) Peter Livingstone ( Neil Duncan ) .