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\nDetectives Use this Simple Technique to Find Your Fingerprints (Even AFTER You Have Wiped Them Off)!\n

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\n\nPublisher:\n\nScience ABC\n\n\n
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\nThere’s a common movie trope of an actor wiping their fingerprints off a gun. It seems like a simple wipe with a cloth eliminates any trace of a criminal’s guilt, but that isn’t actually the case! Scientists have developed a method that...\nThere’s a common movie trope of an actor wiping their fingerprints off a gun. It seems like a simple wipe with a cloth eliminates any trace of a criminal’s guilt, but that isn’t actually the case! Scientists have developed a method that can visualize prints from even the faintest fingerprint deposits left after the metal of a gun is wiped off. This technique uses a colored-electro active film that uses fingerprint residues as a stencil for blocking the electric current. Once a voltage is passed through, the oily regions deflect the colored substances surrounding bare regions, which gives rise to a negative ridge pattern.\n
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Resource Details

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Curator Rating
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Educator Rating
Not yet Rated
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Media Length
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5:40
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Grade
Pre-K - Higher Ed
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Subjects
Science
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Media Type
Instructional Videos
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Source:
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\nScienceABC\n\n
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Date
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2022
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Language
English
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Audiences
For Teacher Use
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Usage Permissions
Fine Print: Educational Use
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Concepts

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fingerprints, surfaces, scientists, blood, zinc, crime, animation
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Additional Tags

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forensic, fingerprint detection, crime scene, crime scene investigator, csi, friction ridge impression, patent fingerprints, plastic fingerprints, latent fingerprints, chemistry, vacuum metal deposition, vmd, movies, television show, forensic fingerprint analysis, crime scene fingerprint, crime scene fingerprint process, crime scene fingerprint technology, science, curiosity, electric current, soft surfaces, visualize prints, brass casing, prints, wiping, visible, fingerprint, part, oils, print, enhance, bullet, surface, investigators, ridges, fingertips, touch, sweat, lifted, create, csis
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Classroom Considerations

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Best For: Explaining a topic
Video is ad-free
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Educator Ratings

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\n\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" aria-label=\"Play video: Detectives Use this Simple Technique to Find Your Fingerprints (Even AFTER You Have Wiped Them Off)!\" href=\"/subscription/new\">\"Detectives\n\n
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