Other episodes explored different themes: "Tomorrow Man" focused on the clash between traditional policing methods and newer more technological ways of solving crime, methods which, in the modern world, have made crimes such as those depicted in "The Sweeney"—for example, villains in stocking masks carrying out wages snatches—seem old-fashioned. "Bad Apple" dealt with police corruption, and here, Regan, despite being seen to bend the rules in other episodes in order to achieve convictions (i.e. for legitimate motives), will not bend them for his own profit, and is shown to hold the deepest contempt for the corrupt officers.