'Latent prints' diaporamas de présentation

C12 Fingerprints

C12 Fingerprints. Honors Forensics K. Davis. Since the nineteenth century, authorities have used fingerprints to prove a person handled an object or was present in a location.

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Fingerprints

Fingerprints. Fingerprints History. Ancient Carvings, 3000 B.C. Included figures depicting fingerprint patterns Awareness of patterns on fingertips China, ~ 3000 B.C. Fingerprints embedded in clay used to seal documents and packages. Fingerprints History. William Hershel, 1860

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1 st Midterm Forensic Hoops Review

1 st Midterm Forensic Hoops Review. Quarter 1. Question 1. Observation vs. Inference? The sky is blue. Question 2. Observation vs. Inference? The water was warm. Question 3. Observation vs. Inference? The room is very cold. Question 4. Observation vs. Inference?

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Fingerprints

Fingerprints. T. Trimpe 2006 http://sciencespot.net. Fingerprint Principles. According to criminal investigators, fingerprints follow 3 fundamental principles: A fingerprint is an individual characteristic; no two people have been found with the exact same fingerprint pattern.

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Fingerprints

Fingerprints. Objectives. You will understand: Why fingerprints are individual evidence. Why there may be no fingerprint evidence at a crime scene. How computers have made personal identification easier. Objectives, continued. You will be able to:

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Presented by Robert Carpenter UCI Undergraduate Research Symposium May 14, 2005

Quality of Latent Prints. Presented by Robert Carpenter UCI Undergraduate Research Symposium May 14, 2005. Why Is This Important?. Example cases of fingerprint misidentification:

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Fingerprints

Fingerprints. Outline. Individuality of Fingerprints What are fingerprints? Classification of fingerprint patterns AFIS Methods of detecting latent fingerprints. Individuality of Fingerprints. Started collecting fingerprints around 1910 (Civil Service)

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Impression Evidence

Impression Evidence. Glatt 2013-2014. What is impression evidence?. Impression evidence- can be defined as objects or materials that have retained the characteristics of other objects through direct contact . .

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Chapter 4 - Fingerprints

Chapter 4 - Fingerprints. What is a fingerprint?. An imprint made by ridge patterns on the tip of a finger. Also used to describe the characteristic pattern of DNA fragments. Why are fingerprints useful?. Properties that make a fingerprint useful for ID:

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Dactyloscopy (the study of fingerprints)

Dactyloscopy (the study of fingerprints). By: Aidan Smith. Types of Fingerprints. There are three different types of Fingerprints Loops Arches Whorls. Loops. Loops are the most common making up about 60 to about 70 percent of all fingerprints

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CJ328 Unit 3-Review Things you should know

CJ328 Unit 3-Review Things you should know. Fingerprints contain unique, individual characteristics Galton details are level two details or individual characteristics Poroscopy and edgeoscopy is the study of level three detail or individual characteristics

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BU Forensics Academy

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Methods for Taking Fingerprints

Methods for Taking Fingerprints. Visible Prints. Visible prints are made when fingers touch a surface after toughing a colored substance like blood, ink, grease, paint, ect . Plastic Prints Are made when ridge impressions are left in soft surfaces like putty, wax, soap, dust, ect . .

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Forensic Science Unit 3 Part 3

Fingerprint Evidence. Forensic Science Unit 3 Part 3. T. Trimpe 2007 http://sciencespot.net/. 3 Types of Fingerprint Evidence. Visible : Left by the transfer of blood, paint or another fluid or powder onto a surface that is smooth enough to hold the print; evident to the naked eye

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Print Classification

Print Classification. Henry System- adopted in 1901, looked at ridge patterns on all 10 fingers, but only accommodated 100,000 sets of prints Primary Classification- divides all fingerprints in the world into 1024 categories Turns patterns into fractions

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Development and Collection of Prints

Development and Collection of Prints. Patent Prints. What would you do if you found this on the wall of a crime scene?. Photograph: With scale (ruler) Multiple angles and distances Lift using clear plastic tape. Document, document, document! Store as evidence. . Plastic Prints.

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Forensic Science

Latent Prints. Forensic Science. T. Trimpe 2007 http://sciencespot.net/. Did you know? Camel hair is the most common animal hair used to make fingerprint brushes. Now many brushes (like the one above) are made out of fiberglass.

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Forensic Science

Latent Prints. Forensic Science. T. Trimpe 2007 http://sciencespot.net/. Did you know? Camel hair is the most common animal hair used to make fingerprint brushes. Now many brushes (like the one above) are made out of fiberglass.

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Latent Prints

Daily CSI. Latent Prints. Crime 360 Superglue Science. T. Trimpe 2008 http://sciencespot.net/. Watch the video and then answer the questions. Video Link: http://www.youtube.com/watch?v=FkcSkADVMIM.

316 views • 3 slides