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12 Cards in this Set
- Front
- Back
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WHAT IS FORENSICS?
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THE USE OF SCIENTIFIC KNOWLEDGE, INCLUDING THE COLLECTION, EXAMINATION AND PRESENTATION OF EVIDENCE TO SOLVE CRIMES
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WHAT IS THE PRINCIPLE FOR FORENSIC SCIENCE?
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LOCHARD'S EXCHANGE PRINCIPLE: 'EVERY CONTACT LEAVES A TRACE'
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LIST TYPES OF PHYSICAL EVIDENCE THAT CAN BE COLLECTED FROM A CRIME SCENE
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- BLOOD AND SALIVA
- FIBERS AND HAIR - FINGERPRINTS - DRUGS - GLASS - EXPLOSIVES, GUNS AND AMMUNITION |
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WHY IS A FINGERPRINT USEFUL FOR IDENTIFICATION PURPOSES?
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- UNIQUE CHARACTERISTIC, NO TWO PEOPLE HAVE THE SAME
- PATTERN REMAINS UNCHANGED FOR LIFE - HAVE GENERAL RIDGE PATTERNS THAT ALLOW THEM TO BE SYSTEMATICALLY IDENTIFIED |
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FOUR TYPES OF FINGERPRINTS?
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- LOOPS
- WHORLS - ARCHES - COMPOSITE |
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WHAT CAUSES A FINGERPRINT TO BE LEFT BEHIND?
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WHEN THE RIDGES OF THE SKIN COME IN CONTACT WITH A SURFACE, A SMALL AMOUNT OF OILINESS FROM THE SKIN IS TRANSFERRED, PRODUCING A PRINT
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WHY WOULD YOU USE WHITE POWDER TO LIFT A FINGERPRINT?
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TO SEE A PRINT ON DARK SURFACES
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HAIR CAN HELP IDENTIFY WHAT?
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THE AGE, SEX AND RACE OF A PERSON, AS WELL AS ENVIRONMENTAL VARIABLES SUCH AS THEIR DIET AND THE KINDS OF PRODUCTS USED.
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WHAT IS A PASSIVE BLOODSTAIN?
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DROPS FORMED BY THE FORCE OF GRAVITY ALONE
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WHAT IS A TRANSFER BLOODSTAIN?
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CREATED WHEN A WET, BLOODY SURFACE COMES IN CONTACT WITH A SECONDARY SURFACE. A RECOGNISABLE IMAGE OF THE ORIGINAL IMAGE MY BE OBSERVED IN THE PATTERN.
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WHAT IS A PROJECTED BLOODSTAIN?
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WHEN AN EXPOSED BLOOD SOURCE IS SUBJECTED TO AN ACTION OR FORCE GREATER THAN THE FORCE OF GRAVITY.
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WHAT IS MEANT BY THE DIRECTIONALITY OF BLOODSTAINS
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THEY TELL WHICH WAY THE BLOOD HS TRAVELED. CAN DETERMINE THE LOCATION OF THE VICTIM WHEN ATTACKED.
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