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Police gather evidence at crime scene, detective testifies in court
Police investigator collects glass fragments on floor as evidence at a crime scene. Close up evidence carton lid labeled by investigator, "glass from door." A second investigator writes his initials in lid of carton cup. FBI forensic investigator using a microscope in laboratory. Forensic investigator explains how examining glass fragments can be compared to other evidence. Close up of glass fragments in petri dish. Forensic investigator using an emissions spectrograph. Close up igniting emissions spectrograph. FBI scientist operating a mass spectrograph. inside the FBI laboratory. FBI nuclear reactor water pool. Forensic investigator reading results from a neutron activation analysis. A forensic investigator discusses how laboratory findings can aid criminal cases and the importance of handling physical evidence before sending to the FBI laboratory. Judge seen in a court room as a police investigator on the stand testifies that the crime scene had been "properly protected by our uniformed men." Policeman standing guard by the door while policemen gather evidence at crime scene. Sketch of the crime scene. Detective taking photograph of glass fragments at crime scene. Footprint photographed. Investigator holds up a plaster cast at crime scene. Policeman collects glass fragments. Investigator carves his initials on metal striker plate of doorknob. Pill boxes with dried blood samples. Policemen packing crime scene evidence. Police investigator in court on witness stand notes that all evidence "was maintained in my custody." Lawyer in court saying "no further questions." Closing credit "presented by The Federal Bureau of Investigation."
Construction of the Transcontinental Railroad in the Sierra Nevada range of California; still photo images and sketches of early railroad building.
View of waterfalls, mountains and serene lakes in California. Song in background about western United States before railroads existed there. Still photos and sketches railroad pioneer Theodore Dehone Judah, and of Chinese workers and other laborers as they work to build the railroad through the Sierra Nevada mountains beginning in 1865. Pictures of early railroad building, westward expansion, and men building a railroad bridge. Train moving between mountain valleys. Still photo from May 10, 1869 of workers from the Central Pacific and Union Pacific railroads celebrating at Promontory, Utah, when their two railroad lines were joined together to realize the goal of the Transcontinental Railroad.
Families camp at various national parks in California, United States.
Promotional film showing Various national parks in California, United States. A child at a sea shore. A man fishes in a stream or river. People climb up mountains carrying camping backpacks. People at a beach. People sit on chairs in front of a recreational vehicle. A camp fire. A man is seen water skiing. The recreational vehicle is driven. A sign reads 'Eldorado National Forest Camp Ground Fallen Leaf'. Children watch fish in an aquarium.
Campgrounds in various national parks and views of mountains, forests, trees in California, United States.
Campgrounds in various national parks in California, United States. A sun rise. A flower against the clouds. Snow covered mountains. A bird sits on a mountain. A forest and barren trees. A car being driven on a mountain road. Fish in a pan and a jar kept on a grill. A woman fills water. The sign of 'Eldorado National Forest Camp Ground Fallen Leaf'. A sun set. The logo of the United States Forest Service Department.
A helicopter picks logs from steep mountains in California, United States.
Transportation of trees using helicopters in California, United States. A helicopter picks logs from steep mountains. The use of helicopters for transporting trees cut from steep slope mountains causes less environmental damage than ground transport.
A seasonal neat watch established by the forest service to protect the Peregrine falcon in California, United States.
Peregrine falcon in California, United States. A recovery team person observes through binoculars. A seasonal nest watch established by the forest service to protect the Peregrine falcon from collectors. Rocky mountains. Members of a recovery team stand with binoculars in their necks. Several views of the Peregrine falcon.