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Forensics Anthropology

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Title: Forensics Anthropology


1
Forensics Anthropology
2
Forensics Anthropology
What is Forensics Anthropology?
  • Generally speaking forensic anthropology is the
    examination of
  • human skeletal remains for law enforcement
    agencies to determine
  • the identity of unidentified bones.
  • Over the past century anthropologists (those who
    study human
  • remains) have developed methods to evaluate bones
    to figure out
  • things about people who lived in the past.
  • These techniques help them to answer questions
    about the remains
  • they are studying.

3
Forensics Anthropology
What questions could Forensics Anthropologists
ask?
  • Are the bones human?
  • Was this person male or female?
  • How old were they when they died?
  • How tall were they?
  • Was the person in good health at the time of
    death?
  • Was the person right handed or left handed?

4
Forensics Anthropology
How do Forensics Anthropologist aide law
enforcement?
  • Through the established methods, a forensic
    anthropologist can
  • aid law enforcement in establishing a profile on
    the unidentified remains.
  • The profile includes sex, age, ethnicity, height,
    length of time since
  • death, and sometimes the evaluation of trauma
    seen on bones.

5
Forensics Anthropology
Are the bone human?
  • A human adult has 206 bones.
  • Since many animal bones look similar
  • to ours, often it takes an anthropologist
  • to determine if the bones in question are
  • human.

6
Forensics Anthropology
  • Which is the human femur bone?

A
C
B
D
Human
T-Rex
Chimpanzee
Great Dane
7
Forensics Anthropology
Was the person male or female?
One way to determine the sex is to examine the
pelvis.
The interior of the pelvis is wider in women.
The sciatic notch is narrow.
Male
The sciatic notch is wide. To allow for child
birth.
Female
It can even be determined how many natural births
a woman has had!!!!
8
Forensics Anthropology
The skull is also useful in determining sex.
Male Female
  • Supraorbital Notch (eye socket)

softer in women.
  • Zygomatic Arch (above jaw)

prominent in men.
  • Mandible (jaw)

square for men, soft for women.
  • Supercilary Arch (eye brow)

ridged in men.
9
Forensics Anthropology
How old was the person at time of death?
  • Teeth come in at common intervals.
  • example wisdom teeth.
  • Fusion of epiphysis femur and other long bones.
  • Clavicle (20 30 yrs) cartilage to bone.

10
Forensics Anthropology
  • Pubic Symphysis Throughout life, the surfaces
    of the pubic
  • symphysis are worn at a more or less predictable
    rate. By examining
  • the wear of the pubic symphysis, it is possible
    to estimate the age
  • of the person at death

11
Forensics Anthropology
  • Skull Sutures Fusing of the skull over time.

child
adult
12
Forensics Anthropology
How tall was the person?
  • By using bones we can get a rather accurate
    estimate of a
  • person height.

Female tibia (cm) x 2.53 72.57 height (cm) radius (cm) x 3.87 73.50 height (cm)
Male tibia (cm) x 2.39 81.68 height (cm) radius (cm) x 3.65 80.40 height (cm)
  • Example

A 41.3 cm Caucasoid male tibia was found in a
wooded area. How tall was the this person?
41.3 cm x 2.39 81.68 180 cm (5-11)
13
Forensics Anthropology
So, who was the person?
  • DNA can be taken from bone cells and marrow.
  • Dental records (odontology) can ID a person. As
    well as
  • unique bite marks.
  • Unique breaks and illnesses can be detected from
    skeletal
  • remains.
  • Occupation can be reasonable determined. Heavy
    labor causes
  • bones to become larger.
  • We can also determine if a person was right or
    left handed.

14
Forensics Anthropology
Are the bones from a crime?
  • Look for bullet holes or fractures.
  • Impressions from weapons are
  • made in bones.

stone tool marks on animal bone
15
Forensics Anthropology
Facial Reconstruction
Copernicus
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