This document discusses the different types of evidence used in forensic investigations. There are six main types of evidence: trace evidence, transfer evidence, indented or impression evidence, striated evidence, geometric evidence, and chemical evidence. Trace evidence includes small amounts of material found at a crime scene that can link a person or object to the scene. Transfer evidence refers to substances exchanged between a victim and assailant or crime scene during contact. Indented evidence includes footprints, tire tracks or other impressions left on surfaces. Striated evidence involves marks left on objects from rubbing together. Geometric evidence examines broken pieces to fit together. Chemical evidence analyzes substances like drugs, fluids or materials from clandestine labs.

1. EVIDENCE
BY ANJANA $ AASIM
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2. Evidence is the available
body of facts or information
indicating whether a belief or
proposition is true or valid.
Evidence, broadly construed,
is anything presented in
support of an assertion. This
support may be strong or
weak. The strongest type of
evidence is that which
provides direct proof of the
truth of an assertion.

3. Types of Evidence
There are six types of evidences
Trace Evidence
Transfer Evidence
Indented or impression evidence
Straited Evidence
Geometric Evidence
Chemical Evidence
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4. Trace evidence:
—Trace evidence is material found at a crime scene or
accident scene in small but measurable amounts.
—This is important as it can definitively link an individual
or object to the scene.
— Because trace evidence can be any number of things,
from a fingerprint to DNA to plant debris, there are
numerous different methods used for analysis.
—For some objects, there is a large database available for
comparisons (fingerprints, DNA), while the science of others
has not advanced that far.
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5. Transfer evidence:
— Transfer evidence is defined as any evidential
substance or particle such as blood,
fluids, hairs, fibers, paint, and skin that is
exchanged between an assailant and the
victim or the scene of the crime.
—From the criminal to the victim
—From the victim to the criminal
—Into or out of the crime scene
—When forcible contact occurs between persons,
vehicles, or objects (e.g. paint in a car crash).
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6. Indented or impression evidence:
—Footprints or shoe prints
— Writing surfaces, like a pad of paper
with the top sheet removed
— Tool marks
—Tire marks
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7. Striated evidence:
— Marks left on objects that rub together,
when one object is harder than the other.
—Striations on bullets are a good
example.
—Photomicrograph of two bullets fired
from the same gun.
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8. Geometric evidence:
—Pieces of Broken Evidence
—Headlights with hit and run
accidents.
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9. Chemical evidence:
— Narcotics
—Flammables
— Alcohol
— Chemicals associated with clandestine
labs.
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