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The Role Of Toxicology To Tackle Drug
Impaired Driving
Jennifer Harmon, Assistant Director, Orange County Sheriff-Coroner,
Orange County Crime Laboratory
Amy Miles, Director of Forensic Toxicology, Wisconsin State Laboratory
of Hygiene
Moderator: Elise Simonsen, Policy Analyst, NGA Homeland Security and
Public Safety
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The Orange County Model: Testing, Training, Research, & Collaboration
Jennifer Harmon
Assistant Director – Forensic Chemistry
Orange County Crime Laboratory
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The Orange County Model
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The Orange County Model
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Toxicology Exams
Tox Cases
DUID Cases
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How does the OCCL process a DUID case?
• All blood cases with driving violations are tested for ethanol and other volatiles.
• All blood cases are screened for 300+ drugs.
• All positive screens are confirmed automatically.
• All drug requests are conducted if reasonable and sufficient sample volume is provided; not already included in screen.
• All DRE samples are comprehensively tested including all requests regardless of charge.
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DUI Drugs: Technology, Research, Collaboration, &
Training,
Jennifer Harmon
Assistant Director – Forensic Chemistry
Orange County Crime Laboratory
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YearCase
Count THCCannabis
Use THC Only EthanolAt least
one drug2016
operators tested (81%) 101 21% 23% 5% 29% 50%
2017operators
tested (80%) 118 17% 18% 9% 32% 56%2018
operators tested (76%) 99 25% 28% 11% 36% 62%
Fatally-Injured Drivers
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Amy MilesDirector of Forensic Toxicology
Wisconsin State Laboratory of HygieneUW School of Medicine and Public Health
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WSLH Forensic Toxicology Team
• 3 Supervisors
• 5 Support Staff
• 13 Chemists
• Law enforcement samples (~18,000 cases/yr)
• Death investigation cases (~2,700 cases/yr)
• Testify in court all over the state
• Provide training in WI and across the countryWISCONSIN STATE LABORATORY OF HYGIENE - UNIVERSITY OF WISCONSIN
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WSLH Toxicology Workload: 2003-2018
Year
78
10 11 12 11 1215
1719
22 23
2628
30 31
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2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
OWI
Drugs (% of total)T
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Policies For Alcohol and Drug Testing
• Limit testing based on BAC
– Common amongst other forensic laboratories doing DUID casework
• Limit testing based on Scheduled drugs
– Each state is different, if policy exists, based on statute
• Resource coupled with technology limitations may drive testing decisions.
WISCONSIN STATE LABORATORY OF HYGIENE - UNIVERSITY OF WISCONSIN
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Forensic Toxicology in a Public Health Lab
State/Local Health Dept
CDC
Highway Safety
Chemical Emergency Response
Assoc of Public Health
Labs(APHL)
Oral Fluid
forensictoxicology
Inve
stig
ati
on
impairm
ent
Dri
vin
gleg
al
pois
on
s
blood
eath
Investig
atio
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The Role Of Toxicology To Tackle Drug
Impaired Driving
Jennifer Harmon, Assistant Director, Orange County Sheriff-Coroner,
Orange County Crime Laboratory
Amy Miles, Director of Forensic Toxicology, Wisconsin State Laboratory
of Hygiene
Moderator: Elise Simonsen, Policy Analyst, NGA Homeland Security and
Public Safety