Federal Bureau of Investigation (FBI) agents investigate cases through scientific methods in the United States. The agents work on the methods of crime detection. They use scientific methods for the detection of crime. Experimental detection of crime. A dummy on the ground. The agents pick up murderer's weapons and other equipment. They also pick up a drinking glasses for finger prints. The murderer's weapons are never touched by hands so that the fingerprints of the murderer can be detected. 'Technical Laboratory Federal Bureau of Investigation' written outside a cabin. A man works in the laboratory and tests samples. A pistol placed on a table. The man views the fingerprints on the pistol through a magnifying glass. He also tests the fingerprints on the glass. Men view the fingerprints on a projector. A man tests the foot print samples to investigate the case. They make and test models of the rifle, footprints, palm and face.
Federal Bureau of Investigation (FBI) agents investigate cases through scientific methods in the United States. A handwriting expert examines handwriting for the identification of criminals. Other men test clothing to identify criminals. The dust from the clothes is examined. A man examines the sample with the help of a microscope. A chemical test is conducted.
Federal Bureau of Investigation (FBI) agents investigate cases through scientific methods in the United States. Four knives used in a crime are placed on a table. Minute particles of zinc and copper on the knives are inspected. A man examines the sample. Men examine the guns used in a crime. A gun is fired and then examined. A man looks at the sample through a microscope. Other man seated nearby examines other sample.
Federal Bureau of Investigation (FBI) agents undergo their training in the United States. A field training for the agents. They fire rifles at target boards. The training continues in night. The agents fire rifles and hit the target boards at night. FBI Director John Edgar Hoover addresses the nation and talks about the goal of eradication of crime from the country.
A film titled: 'Cavalcade of the American Merchant Marine' depicts legislative and maritime history of the U.S. Merchant Marine. Various large masted ships seen to represent historical ships of the 18th century and 19th century. A large masted ship underway at sea in the United States. Men work on the ship. They stand on the deck of the ship. Men sboard the ship during a heavy storm. Reeanctment of old merchant ships at port. Mountains in the background.
The legislative and maritime history of the U.S. Merchant Marines. Newspaper headlines in the United States read: 'SS Vigilancia', 'Torpedoed', 'US declares war' during World War 1. Women march in a parade with a banner "Wake Up America". President Woodrow Wilson with military and other officials marching on a New York City street decked out for a parade. U.S. infantry and cavalry pass led by General Pershing on streets of Paris France. Buildings along the sides of an American city street decorate with bunting for a parade. U.S. Army soldiers pass in parade review. Soldiers aboard a ship. The U.S. troop carrier ship underway at sea bound for Europe. Women and families on shore dock wave hands and scarves to the departing U.S. forces heading for the war front. Supplies being loaded onto a ship. Shipbuilders quickly working to build both steel and wooden ships to carry forces in the war, due to a lack of transport ships. A newly completed ship slides down the ways and takes float. Men standing on the deck of the ship. A newspaper headlines reads: 'War Ends'. A busy American shipbuilding and port area crammed with ships of all sizes. Ships sitting idle after World War I and some in disrepair including one with name "America" on the bow.
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