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DNA In Forensic Science: A Case Study

Maria Carello & Kristine Kerber
by

Kristine Kerber

on 3 October 2012

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Transcript of DNA In Forensic Science: A Case Study

A Case Study DNA IN FORENSIC SCIENCE: By Maria Carello & Kristine Kerber DNA In Forensic Science:
A Case Study

Stories or scenarios that are used as a tool for analysis and discussion
Often based on actual events
Content usually reflects purposes of the course
Facilitates problem solving
Case studies will include Colin Pitchfork, Robert Pickton, the Romanovs and Laci Peterson Instructional Strategy using Case Studies What is Forensics? Forensic Science covers the areas of science that are relevant to the law.
It is primarily involved in gathering scientific evidence proving that a crime has occurred, and by whom it was committed.

Examples:
Forensic pathology
Criminalistics
Forensic odontology
Forensic toxicology What is Forensic
Science? 99.9 percent of human DNA is the same in everyone, meaning that only 0.1 percent of our DNA is unique!

Blood
Semen
Hair
Saliva
Bone
Tissue
Teeth
Urine Sources of Biological
DNA Evidence Types Of DNA Analysis Evolution of DNA in Courts Case #1
The Romanov's Recent Case: Case #3
Robert Picton Case #4
Laci Peterson Locard's Principle: "There is no such thing as a clean contact between two objects. When two bodies or objects come into contact, they mutually contaminate each other with minute fragments of material." RFLP- Restriction Fragment Length Polymorphisms
mtDNA- Mitochondrial DNA
STR- Short Tandem Repeat
Y-Chromosome
PCR- Polymerase Chain Reaction Murdered in 1918 during the Russian Revolution
Tsar and Tsarina and their 5 children were shot and stabbed to death
Found 9 skeletal remains in 1991
Thought daughter Anastasia had survived and fled the country. First time DNA was used in casework
UK cases in 1983 and 1986
Convicted in 1987
"Blooding" of over 4000 males looking for type A blood
Richard Buckland who confessed to first murder exonerated "Pig Farm" case in Canada Forensics is the application of any field to questions which are of interest to the legal system.

Examples:
Forensic accounting
Forensic psychology
Forensic odontology Case # 3
Robert Picton 1985 2012 1994 1987 One of the most influential mtDNA cases
Missing in 2002
Bodies found in San Francisco Bay one mile apart
Scott Peterson charged and convicted of murder in 2005, 644th member of San Quentin Death Row
Unborn Victims of Violence Act Passed Case #2
Colin Pitchfork Case #3
Robert Pickton "Pig Farm" case in Canada
Longest and most expensive 21-month search in Canadian history
1983 - first disappearance of Rebecca Guno•
1997/ 1998 - more frequent disappearances of prostitutes from Red Light District in Vancouver
2002 - first charges filed against Robert Pickton when searching his pig farm
2003 - preliminary hearing and excavation ends
2005 - charged with 27 deaths First Forensic DNA case - UK immigration case First exoneration based on DNA- Pitchfork Case
First civil court case First DNA evidence conviction
First DNA profiling in US
First admissibility challenge First conviction overturned in US
First DNA used in criminal case in Canada First use of mtDNA in forensic case First use of mtDNA in Canada First conviction in Canada using mtDNA DNA is commonly used as evidence in courts First charges filed against Pickton "Pig Farm" 1986 1989 1999 2006 2002
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