forensic pathology & death investigation in arizona · 11/5/2014 1 forensic pathology &...
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Forensic Pathology & Death Investigation in Arizona
Arizona Society of Pathologists2014 Fall Conference
Gregory L. Hess, MDChief Medical ExaminerPima County Office of the Medical Examiner
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Overview
Purpose of it all Brief history of death investigation in US
Coroner, Medical Examiner, Forensic Pathologist Death investigation systems
Arizona death investigation Statistics – Cause & Manner of Death Interaction with LE Examples
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Purpose of the Medical Examiner’s Office
Determines cause and manner of death of decedents that fall under jurisdiction of ME
Types of deaths that require reporting Death when not under current care of a physician Violence Sudden and unexpected Threat to public health Prisoner or in a prison Suspicious, unusual, unnatural Related to occupation Related to medical procedure Unidentified
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Purpose of the Medical Examiner’s Office
Public health Report deaths due to communicable disease Authorize cremation Tissue and organ donation Vital statistics
Assist families Answer questions Timely death certification for funeral
arrangements
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Purpose of the Medical Examiner’s Office
Aid justice system Collect evidence Testify Interpret injury Estimate postmortem interval
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What’s The Difference?
Coroner Medical Examiner Forensic Pathologist
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Coroner
Often elected, term limit Qualification specified by local law May not have any medical background Concept from England Minimal practical modern use
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Medical Examiner
Often appointed by government without term limit
Often a physician (can be any kind) May be appointed non-physician
May not be a Forensic Pathologist
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Forensic Pathologist
Physician (pathologist) Additional training in forensics Work in larger population centers Criminal case work and testimony
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Death Investigation Systems: 2014
Some counties have a medical examiner and many or most have a coroner.
State Medical Examiner with coroners in each county
State Medical Examiner with various types of non-coroner regional or local assistance
State Medical Examiner assisting coroners in most counties, at least one autonomous county medical examiner
District Medical Examiners (FL).
Medical Examiner (physician) in each county.
Coroner in each county
Regional offices administratively (but not operationally) overseen by person with title of State Medical Examiner (NJ, TN)
Mostly state-funded district offices assisting coroners in most counties (AL).
Randy Hanzlick, MD
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Arizona
9 Counties in Arizona run a Forensic Pathologist managed death investigation system
Medical Examiner = Forensic Pathologist Alternate Medical Examiner = Non-FP
physician No coroners in Arizona, only ME’s and
alternate ME’s
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Total Cases 2004 - 2013
19701864
1983 1930 1893 1910
21952138
25232611
22922337 2505
25772501 2602 2577 2628
32033350
0
500
1000
1500
2000
2500
3000
3500
4000
2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
Pima County
All Counties
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Cause vs Manner of Death
Cause Blunt force injury Coronary artery disease Diabetes Hanging Gunshot wound Overdose Emphysema etc
Manner Homicide Suicide Natural Accident Undetermined
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MANNER OF DEATH - 2013
910
843
270
180123
Natural - 39%
Accident - 36%
Suicide - 12%
Undetermined - 8%
Homicide - 5%
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Homicide by Cause - 2013
7619
18
10
Firearms - 62%
Sharp Force - 15%
Blunt Force - 15%
Other - 8%
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Accident by Cause - 2013
283
231
197
64
23 14 13 18
Overdose - 34%
Blunt Force Trauma - 27%
Motor Vehicle Accident - 23%
Exposure To Elements - 8%
Drowning - 3%
Asphyxia - 2%
Fire Deaths - 2%
Other - 2%
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Suicide by Cause - 2013
144
72
33
9 12
Firearms - 53%
Hanging - 27%
Overdose - 12%
Asphyxia - 3%
Other - 4%
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Natural Deaths by Cause - 2013
57973
52
47
3940
80
Cardiovascular Disease - 64%
Sequelae of Chronic Alcohol Abuse - 8%
Pulmonary Disease - 6%
Infectious Disease - 5%
Diabetes Mellitus - 4%
Malignacy - 4%
Other - 9%
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Overdose Deaths 2010 - 2013
273277
314
327
240
250
260
270
280
290
300
310
320
330
340
2010 2011 2012 2013
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Select Drugs by Year 2011-2013
53
76
55
42
6664
40
47
59
37 38
78
3836
53
22
39
34
0
10
20
30
40
50
60
70
80
90
2011 2012 2013
Oxycodone
Morphine
Alcohol
Methamphetamine
Heroin
Cocaine
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ME and the Judicial System
Frequently consulted in criminal prosecution and civil litigation
Most criminal investigations involve homicides followed by accidents (MVA)
Most commonly called to testify by the prosecution as neutral expert witness
Guilt is determined by the court
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What information we provide
Estimate postmortem interval Document and characterize injury
Firearms, Sharp force, Blunt force, Asphyxia, etc Presence/absence of natural disease or other
conditions Survivability Distinguish between artifact and injury Collect evidence
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Components of Examination Review of information
Scene, demographic, medical history, comments from law enforcement, families, others
External Examination Clothing, height, weight, injuries, natural disease,
scars, tattoos, medical intervention, evidence collection
Internal Examination Injuries, natural disease, medical intervention,
evidence collection
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Components of Examination
Toxicology Illicit drugs, prescription medications, poisons
Radiographs Projectiles, dental examination for ID, hardware
Histology Infections, cancer, natural disease
Other Cultures, DNA, special tests
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Postmortem Interval
Rigor Mortis Livor Mortis Algor Mortis Amount of decomposition VERY environmentally dependent Last seen alive Mail, paper, cell phone, etc
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Postmortem Change Questions
Are the finding consistent with story “X”? Postmortem movement of the body?
Environment – temperature, air flow, clothing, body habitus, humidity, insect activity, animal scavenging
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GSW Questions
Range of fire? Contact Intermediate Distant
Entrance/Exit? If multiple injuries which is most serious? Same weapon? Handgun, shotgun, rifle, etc.?
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Sharp Force Injury Questions
Stab or incised wound? Length of blade? Depth of penetration? If multiple wounds which is most serious? Direction of wound? Sharp or blunt edges? Consistent with weapon “X”?
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Blunt Force Injury Questions
Contusion, abrasion or laceration? All injuries same age? If multiple which is most serious? Consistent with being produced by weapon
“X”? Pattern to injury?
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Natural Death Questions
Often involve sudden deaths or deaths of individuals who did not see a doctor How did they die? Could I have done something sooner? Does this run in the family?
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CHARGE Syndrome
Coloboma of the eye Heart defects Atresia of the choanae Retardation of growth or development Genital/urinary abnormalities Ear abnormalities or deafness