Summary: Film warns British civil servants and members of the armed forces to observe the Official Secrets Act and to be vigilant against enemy agents, some of whose techniques are reenacted in scenes "based on real incidents".
Production Details: Central Office of Information (Production sponsor)
World Wide Pictures (Production company)
Cass, Henry (Production individual)
Parris, Clifford (Production individual)
Personalities, Units and Organisations:
Keywords:
Physical Characteristics: Colour format: B&W
Sound format: Sound
Soundtrack language: English
Title language: English
Subtitle language: None
Technical Details: Format: 16mm
Number of items/reels/tapes: 1
Footage: 982 ft; Running time: 25 mins
