Many exterior scenes were filmed during the '1976 British Isles heatwave' which is clearly evident with the bright sunshine, sweaty faces with very loose collars and ties.
Anthony Heaton (Billy Medhurst) previously played a character named Eddie Jackson in 4 episodes of Time of Your Life (1971). Billy Medhurst shot and crippled Eddie Jackson in this episode.
Maureen Sweeney is the first of two actors this season with the same last name as the title of the series; the other is George Sweeney, who appeared in two episodes, (Taste of Fear and On The Run) playing the same character.
Johnny Shannon (Mason) later appeared in Sweeney! (1977) as Scotland Yard Duty Sergeant. And in Sweeney 2 (1978) as Harry-Villain.