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Forensics 1
is an introduction to the history, development and science of crime
scene investigation. We will be studying the many individual jobs of
forensic scientists, the scientific techniques each specialist uses, and
the value of forensic science for the U.S. judicial system.
In this course real forensic case studies and
staged crime scene situations will be used to learn and practice the
scientific procedures for the collection and analysis of crime scene
evidence.
Crime scene processing includes: the
identification and analysis of fingerprints, footprints, hair and fiber,
identification of, and typing of human blood, and the collection,
analysis, and preservation techniques for different types of trace
evidence. Most importantly students will be learning that by using
strict scientific techniques, our justice system can use forensic
science to solve criminal cases.
Forensics 1 Activities:
Introduction to Forensic Science - Chapter 1
·
The history of
important inventions and discoveries in forensics.
·
U.S.
Judicial System
- the bill of rights, types of crimes, facets of guilt.
Evidence labs - 2
·
Analysis of
Evidence Lab - 15 items taken from various crime scenes are used to
identify types of evidence
and how to categorize evidence as class or
individual.
Crime scene labs - 3
·
Observances
testing Lab - how observant are you?
·
Physical
Investigation of a mock Murder Scene Lab - documentation and collection
techniques.
Fingerprint labs - 4
·
Processing and
classification of fingerprints Lab - ink pads and minutiae points
·
Processing of
latent prints Lab. - super glue tank
·
Lifting visual
and latent prints Lab - brush and powder
·
What's AFIS? -
how it works and how we use it. (# of points to be considered a legal
match.)
Hair analysis labs - 5
·
"Murder at the
Ranch" hair analysis Lab - hair as evidence - it's limited use.
·
Microscopic
Structure of hair Lab - identification of external and internal
structures.
·
Crime at Scott's
Apartment - species comparative hair lab
Fiber labs - 6
·
Fiber
collection Lab - searching for trace evidence
·
Identifying synthetic and natural fibers by characteristics - visual
comparisons
·
Burn Test
of fibers Lab - ignition characteristics
·
Thermal
Decomposition of fibers for identification Lab - low heat in test tubes
·
Chemical
testing of Fibers Lab - chemical reactive characteristics
·
Identifying Fibers by Refractive Index Lab - oil immersion
Trace evidence labs - 9
·
Identification
of metals Lab - using chemical reactions
·
Identification
of white powders found at crime scene Lab-collected from crime scene
·
Lip Prints Lab -
identifying patterns.
·
Lipstick
Chromatography Lab - solvent results to find a match
Blood serology labs - 10
·
Detection of
blood Lab - using luminol and animal blood
·
Human versus
animal blood lab - collected from crime scene
·
ABO/RH Blood
Typing Lab - using simulated blood
·
Phenolphthalein
- presumptive blood test
Forensics 2
will be employing the skills learned in forensics 1 to do a more
in-depth study with more advanced CSI techniques. Areas of study: blood
spatter, ballistics, human remains, entomology, DNA analysis, soil
analysis, toxicology, drugs, glass, document and handwriting analysis.
Forensics 2 covers:
Blood spatter labs- Chapter 10
·
Vertical drip
pattern recognition - trigonometry
·
Spatter impact
angles - trajectory
·
Transfer
patterns - reconstruction techniques
Ballistics labs -
·
Comparison of
guns and bullets - plastic samples
·
Rifling grooves
and lands - demo bullets
·
Bullet caliber
assessment - electric caliper measurements
·
Casings - study
of fired casings
·
Impact angle and
trajectory - stringing and angles - trigonometry
DNA Analysis labs - 11
·
Extraction of
DNA - Isolation and spooling.
·
DNA
Fingerprinting - Electrophoresis of crime scene DNA & 2 suspects.
·
DNA case 1 & 2 -
Forensic uses of electrophoresis.
Human Remains labs - 12
·
Postmortem
interval - determining the time of death.
·
Forensic
anthropology - human vs animal skeletal remains.
·
Determination of
sex, age, height, race and cause of death.
·
Facial
reconstruction - forensic uses
·
Autopsy - on
line
Soil Analysis labs - 13
·
Collecting and
observing soil - hit & run case
·
Case study using
soil samples
Entomology Labs - Museum of Science & Industry
·
Stages of
decomposition and Insect Activity.
Glass labs - 14
·
Observing
different types of glass - Composition & physical properties.
·
Characterization
of glass - density
·
Determining the
refractive index - using glass fragments.
·
Analysis of
fracture patterns - when glass breaks.
Documents and Handwriting Analysis labs - 15
·
Documents as
evidence -
·
Forgery
·
Handwriting
analysis - angle, erasures, indenting.
·
Ink
Chromatography - spectral comparison.
·
Counterfeiting -
testing currency.
Toxicology - 8
·
Poisons &
alcohol - toxicity
·
Lead poisoning -
·
Alcohol Breath
test -
Drug labs - 7
·
Spot test for
over the counter drug identification.
·
Presumptive test
for illicit drugs.
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