Produced by (MPTV), it was, like their Sherlock Holmes (1954), filmed in France, shot in English, and intended for American television.
As the series used actual cases taken from the Surete Files, the producers expressed their gratitude in the credits to "Monsieur Jean Baylot, Prefect of Police, Paris, France and his Staff for their co-operation in making these films possible".
A modest success, the show was ended because neither Jourdan or Dauphin wished to continue the grueling, almost entirely on-location shooting schedule. 26 episodes were shot, and "that was enough," recalled Dauphin. "We were worn out."