Investigation: Jim Hill CSI

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Investigation Jim Hill CSI
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The Next Step to Solving the Mystery
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What is CSI?

• An interdisciplinary activity that brings
  together teams to solve common problems
• Our program was an integration of Science, Math,
  Art, Public Speaking, and Technology
• Anthropology
• Entomology
• Knowledge of Fingerprint Evidence
• Knowledge of Blood Evidence

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Forensic Anthropology

• The examination of skeletal remains
• Examination can also yield approximate time since
  death
• We can identify gender, approximate age, physical
  stature, and likely racial affiliation of the
  person.

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Osteology

• The study of bones
• Age, sex, probable racial affiliation, and
  general stature of the person in life
• The human skull is the most telling of all of the
  bones
• Osteology can also help to determine the length
  of time since death.

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I wonder where he lost his head?
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Dentition

• Study of dental remains
• We can determine age, sex, and dietary habits
• Adult humans have 32 teeth and children have 20
  teeth

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The Effects of Crest Whitening Strips.
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Forensic Entomology

• The study of insects and their associations with
  a dead body
• Is used for a determination of the time or site
  of human death
• Cases involving possible sudden death
• Traffic accidents with no immediately obvious
  cause
• Possible criminal misuse of insects

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Maggots and MurderForensic Entomology

• The students have learned how to determine the
  time of death using maggots
• There were four different species of flies in the
  lab
• Musca domestica
• Calliphora vomitoria
• Piophila nigriceps
• Sarcophaga carnaria

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Now explain what the little marks of the ruler
mean.
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Be sure to include significant digits in your
answer.
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From what species of fly did this maggot arise?
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Wait there is one more in here !
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Slippery little buggers arent they !
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Now remember the length determines the age !
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Fingerprint and Toe Print Analysis

• Fingerprints are unique to every individual
• Fingerprints can be taken from a corpse
• There are two types of prints
• Latent prints
• Patent

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Characteristics of Fingerprints

• The ridge patterns are characterized by type,
  number, and relative location
• An average fingerprint contains about 150 ridges
• Individual ridges are sometimes called points

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Three Types of Ridge Patterns
Accidental Whorl
Plain Whorl
Tented Arch
Plain Arch
Central Pocket Loop
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Now is that an arch or a whorl?
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Great arched fingerprint !
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The mark of the killer
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We did say fingerprintswrong end !!!
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Blood Spatter Lab

• Vertical Drip Patterns
• Walking Drip Pattern
• Wipes
• Swipes
• Other Transfer (knife, hammer, etc.)
• Arterial Spurts Vertical
• Arterial Spurts Horizontal
• Cast off Spatter
• Impact Angle

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Creating Comparison Standards for Angle of Blood
Spatter
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Analysis of Vertical Blood Drops
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Swipe vs. Wipe in Cleaning Blood Away from a Scene
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Creation of Vertical Drops
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Identification of The Sequence of Steps in a
Blood Trail
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Who Stepped in the Spilled Blood?????
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Cast off Patterns of Blood
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Does Blood really Fall at the Same Rate from
Different Heights?
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How The Angle of Impact of a Blood Spatter is
Measured

• 2nd, SIN inverse (width/length)
• Diameter of vertical drops

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Angle of Impact Spatter at 30 degrees
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Angle of Impact at 40 degrees
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Crime Scene Lab

• Combining bone evidence and blood spatter
• Students had to piece together the crime scene to
  get their results and solve a murder.

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Classroom Activities

• As a part of our literacy activities, we read Dr.
  QuickSolve Murder Mysteries aloud and ask
  students to solve the crime.
• Do Nows relating to forensic evidence are given
  to students when they first walk in the
  classroom.
• As another part of our required literacy
  activities, the class worked on a Word Wall
  Puzzle with anatomy and forensic terms.

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Facial Reconstructions Forensic Art

• Place Tissue Depth Markers according to Racial
  and Gender Averages
• Reconstruct the Muscles of the Face
• Complete the Final Features to Identify the
  Victim of the Crime

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Using Racial Facial Features to Determine the
Tissue Depths of the Victim
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Facial Reconstructions of Unknown Victim
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Is this our long lost cousin Bob the Builder????
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Tissue Depth Markers Victim Two
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Trust me it will hurt me more than it hurts you
!
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Smile for the Camera? The Modern Facelift ?
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Are two ears really better than one?
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Help Me!!! There is Something in My Eye.maybe
your finger?????
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Look into My Eyes
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Guest Speaker

• Dr. Steven Haynes, Mississippi State Pathologist,
  visited Jim Hill and shared the use of forensic
  evidence in solving crimes .

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Dr. Steven Haynes, State Pathologist, visits Jim
Hill