1-8 forensic laboratories v1 (1)
TRANSCRIPT
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Around the World
1
1910 Lyon, France
1915 Germany
1923 Austria
U.S.A. (L.A.P.D.)
Set up by Edmond Locard
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Around the World
2
1932 U.S.A. (F.B.I.)
1935 U.K. (Scotland Yard)
1925 Holland
Finland
Sweden
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Now all part of the Health Sciences Authority
In Singapore
3
1960s
Pathology lab Chao Tze Cheng
1929 Chemical analysis service
Straits Settlements Police
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Firearms Unit
Photography Unit
Toxicology
Latent Prints
Polygraph Voiceprint
Psychiatric profiling
Computer
& Electronic
Forensics
Forensic Entomology
Forensic Engineering Forensic Geology
Forensic Anthropology
Facial Reconstruction
Forensic Odontology
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Documents Unit
DNA Lab
Physical Science Unit
Biology Unit
Forensic Science Laboratories
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Physical Science Unit
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Biology Unit
Chemical and physical analysis
Chemical tests, spectroscopy, microscopy,
drugs, material fragments, explosives
Biological samples
Hair, plants
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DNA Lab
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Firearms Unit
Essential
Guns, bullets, cartridge cases, firearm damage
DNA analysis services
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Documents Unit
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Photography Unit
Determine faked or forged documents
Analysis of handwriting, prints, paper, ink
Recording & presenting of evidence
Determine real & fake photographs
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Photography Unit
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Discontinuous
black line
Pixels are
mis-matched
Different angle
of shadows
1
2
3
Not genuine?
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Photography Unit
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“Surgeon’s” photograph
Loch Ness Monster?
Genuine photo
Model monster Loch Ness Monster?
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Toxicology
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Fingerprinting
Polygraph
Drugs and poisons in body fluids and organs
Visible and latent prints
Can we scientifically detect a lie?
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Voiceprint analysis
12
Osama bin Laden
Audio recordings of his voice?
Proving that a
voice belongs to a
particular person
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Voiceprint analysis
Howard
Hughes
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Clifford Irving claimed to
possess Howard Hughes’
authorised biography
Denied by Hughes
Teleconference
Recordings compared
Irving convicted of fraud
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Psychiatric Profiling
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Computer Forensics
What can we tell about the criminal from the way they commit the crime?
Retrieving deleted data
Following of electronic trail
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Forensic Engineering
15
Minneapolis I-35 bridge collapse
Design fault of bridge
Corrosive effect of pigeon droppings?
Minneapolis
I-35 bridge
Why?
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Forensic Geology
Forensic Entomology
Using insects to provide information
Soil analysis
Mineral content
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Forensic Anthropology
Analysis of skeletal remains
Skeletal remains
When people die in remote places
Only found after the body has decomposed
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Joseph Schexnider
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No other evidence
Abbeville, 2011
Human skeleton found
in an old chimney
Identified as Schexnider
Disappeared in 1984
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Facial Reconstruction
Take skull and rebuild flesh
See how person looked like when they were alive
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Karen Price
20
Facial Reconstruction
Reconstructed face shown on TV
Victim recognized immediately
Skeleton found
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Alexander Fallon
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Facial Reconstruction
Difficult to tell age
15 years before he was identified
Killed in 1987
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Facial Reconstruction
Used modelling clay
Now done electronically
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Forensic Odontology
Identification of victim remains
Identification of criminals
Using teeth to provide information
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Ted Bundy
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Forensic Odontology
Bite mark on victim
Comparison to his
teeth impressions
Convicted & executed
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Acid Bath Haigh
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J. G. Haigh
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J. G. Haigh
“Acid Bath Haigh”
Killed 9 people
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J. G. Haigh
“Acid Bath Haigh”
Killed 9 people
Olive Durand-Deacon
Led to his capture
Olive Durand-
Deacon
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Lured Mrs. Durand-Deacon there with talk of investments
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No conviction for a crime without a body?
Had a countryside shed
J. G. Haigh
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Misunderstood the concept
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J. G. Haigh
Must be the body of evidence to prove the occurrence of a crime
Haigh: “No murder charge without a real body”
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Destroyed victims’ bodies
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J. G. Haigh
Dissolved them in sulfuric acid
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Evidence of murder
Gall-stones
False teeth Individualised
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2
Dental records