Dr. Peter Roesner
Terry Dal Cason
Terry Dal Cason is a retired forensic chemist who worked for the Department of Justice for more than 40 years, first for the Bureau of Narcotics and Dangerous Drugs, and then for the Drug Enforcement Administration. He has published more than 20 peer-reviewed articles and has served as a guest reviewer for three journals. He is a past president of the Clandestine Laboratory Investigating Chemists Association, and is a fellow of the American Academy of Forensic Sciences.
Terry Mills is a former Deputy Director of the Georgia Bureau of Investigation Department of Forensic Services, the principle author of Instrumental Data for Drug Analysis (IDDA), and the manager of accreditation for Forensic Quality Services.
Daniel V. Reinhardt, Jr., PhD
Chief, Drug Chemistry Branch
Dr. Reinhardt received his PhD in
Organic Chemistry from the University at Buffalo, State University of New York.
He started worked in the field of forensic science in 1991 as a bench chemist in
the US Drug Enforcement Administration (DEA) laboratory system. He transferred
from the DEA lab system to the US Army Criminal Investigation Laboratory
(USACIL) and continued to work as a bench chemist in the field of controlled
drugs until 2005. In 2005 he accepted the Branch Chief position at USACIL where
he oversees the analysis of seized drugs of abuse within the US Department of
Dr. Peter Roesner studied Chemistry at the University of Kiel (Germany). In 1981 he became head of the toxicology department at the state agency of criminal investigation (Landeskriminalamt) in Kiel, where he focuses on drug identification and structure elucidation with GC/MS methods. Since 1992 he has also been a lecturer for mass spectrometry at the University of Kiel. In 2005, Dr. Rosner received the Jean-Servais-Stas Award from the Society of Toxicological and Forensic Chemistry in honor of his outstanding work in forensic sciences. He is the primary creator of the Mass Spectra of Designer Drugs library.
Sarah Atkinson was awarded a PhD in Organic Chemistry by Griffith University, Australia. She has worked as a chemist in the pharmaceutical industry and is currently employed as a forensic chemist in illicit drug analysis for the Department of Health in Queensland, Australia.
Josh Yohannan is a lab manager for the Allegheny County Office of the Medical Examiner. Prior to that he was a chemist with the DEA focused on novel psychoactive substances (NPS). Areas of expertise include dosing facilities and identification/elucidation of unknowns
Nawyn has been employed as a forensic drug chemist since 1999 and is
currently employed with the United States Army Criminal Investigation
Laboratory (USACIL) where he has analyzed thousands of exhibits from all over
the world. He has given numerous presentations to a variety of
organizations, both regional and international, regarding the recognition and
analysis of emerging drugs of abuse (ex. Synthetic cannabinoids, synthetic
cathinones, etc). He has been declared an expert in the field of drug
chemistry in local, state, federal, international, and military courts.
Wheasler is a Forensic Scientist with the Ohio Bureau of Criminal
Identification and Investigation
Jennifer McNair is a Forensic Scientist Manager at the Utah
Bureau of Forensic Services, where she has been employed for over 18
years. She manages the Chemistry Section
of the laboratory and is an expert in the analysis of controlled substances,
fire debris, and paint. She is the
laboratory’s technical leader in controlled substance analysis and is active in
performing controlled substance and trace evidence case work. Ms. McNair is an ABC Fellow in Drug Analysis
and is also a member of CLIC, NWAFS, and ASTEE. She is a contributor to a state
legislative committee on controlled substances.
Nicole Astor has been with the Georgia Bureau of
Investigation, Division of Forensic Sciences, since 1998. She currently serves as the Chemistry
Discipline Technical Leader, and oversees instrumental and analytical method
development in both Drug Identification and Fire Debris Analysis. She has been declared an expert in Drug
Identification in both state and federal courts. Ms. Astor is an ABC Fellow in Drug Analysis
and is also a member of CLIC and SAFS.
Karen Blakey has been working as a forensic chemist since 1997 and is currently a senior chemist with the illicit drug group of Queensland Health Forensic and Scientific Services, Brisbane, Australia.