Short film showing how the crime is solved.
Two men rob a bank messenger. Man dials 999, police sergeant answers telephone at station and sends out message to police cars. Police car picks up a message and rushes to the scene of crime. Good shots of police cars speeding through streets.
Policewoman telephone operator makes connections with surrounding districts. C.I.D. gets into car and drives to scene of crime. Making investigation. In Scotland Yard, checking photographs of convicted criminals trying to identify the robbers. Shot of a filing cabinets. Policeman walking along street, finds abandoned car and rings police station. C.I.D. men taking footprints and fingerprints. Checking fingerprints with files at Scotland Yard. Criminals are picked up.