Writer Evan Hunter (aka Ed McBain) remade Line of Duty (1961) as this episode, substituting Officer Eve Whitfield (Barbara Anderson) for the original's Detective Bert Kling (played with aplomb by Ron Harper). In a nod to the original, Walter Burke reprises his role as a police informant (named Danny Gimp in the original). A strikingly similar story can also be seen on The Hero (1975).