CSI UMMC

1
CSI UMMC

• A Lesson in Forensic Science

2
CSI Determinations

• What crime has occurred?
• Where did it happen?
• Who committed the crime?
• When was the crime perpetrated?
• Why did the crime happen?
• How was the crime committed?

3
Crime solving is a jigsaw puzzle that must be
pieced together
4
Good Investigators Have

• Patience
• Thoroughness
• Accuracy
• Ethics
• Respect
• Versatility
• Objectivity

5
Count the Fs

• Finished files are the result of years of
  scientific study combined with the experience of
  many years.

6
There are 6!

• Finished files are the result of years of
  scientific study combined with the experience of
  many years.

7
CSI A Multidisciplinary Approach

• Chemistry
• Physics
• Mathematics
• Biology
• Psychology

8
Crime Scene Management and Processing

• The crime scene must be identified
• The scene must be secured
• Access and departure must be logged
• Access must be restricted to authorized personnel
• A chain of custody MUST be established for every
  piece of evidence from collection to inspection

9
Photography and Sketches

• 4 types of photographs
• Forensic
• Medical
• Evidentiary
• Police snap shots

• Sketches
• Indicate measurements
• Locate evidence (GPS)
• Include date, location and case
• Use only the English system

10
Crime Scene Notes

• Concise
• Legible
• Accurate
• Objective (contain no theories, opinions, or
  speculation)
• Are subject to legal discovery
• Are legally required in some jurisdictions and
  must be maintained and surrendered

11
Crime Scene Processing Order

• Photography
• Search and mark evidence
• Collection of evidence
• Hair and fibers
• Serological specimens
• Other physical evidence
• Fingerprinting
• Alternate light sources
• Chemical processing
• Re-Search
• Post evidence recovery photographs

12
Forensic Specialties

• Pathology
• Toxicology
• Odontology
• Anthropology
• Serology
• Criminalistics

13
Locards Exchange Principle

• Edmond Locard (1877-1966)
• Eatablished the first
  crime scene laboratory in Lyon, France (1910)
• When a suspect comes in contact with an object
  or person, a cross transfer of evidence occurs.

14
Trace evidence

• Hairs and fibers
• Skin cells
• Minute amounts of blood
• Dirt
• Organisms
• Fragments
• All of these can now be used so none are ignored

15
CSI Team

• An expert on everything rarely knows anything
• Unattributed Quote