Who We Are and What We Do: Forensics

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Take a peek into the inner workings of the Drug Enforcement Administration in our 2019 lecture series “Who We Are and What We Do.” Join Elizabeth L. Maurer, Curator of Education for the DEA Museum at a panel discussion with members of the Forensics staff from around the country.

The mission of the Drug Enforcement Administration’s Office of Forensic Sciences is to provide quality scientific, technical, and administrative support to the law enforcement and intelligence communities and to the criminal justice system at large, to assist with the enforcement of controlled substance laws and regulations of the United States. There are three different disciplines within the Forensic Sciences division: Chemistry, Fingerprints, and Digital Evidence.



Forensic Chemists analyze evidence for the presence of controlled substances using state-of-the-art instrumentation, provide expert testimony in courts of law, support DEA Special Agents and Diversion Investigators in their criminal and regulatory investigations, and develop intelligence data used to determine trends in local and international drug trafficking.


Fingerprint Specialists use state-of-the-art examination techniques for development and comparisons of latent prints, support DEA Special Agents in their investigations, assist with clandestine laboratory investigations, provide testimony in Federal, state, and local courts of law, and conduct training for DEA Forensic Chemists and law enforcement officials.

Digital Evidence

Digital Forensic Examiners recover and analyze digital evidence, provide expert testimony in courts of law, provide investigative support to law enforcement, and conduct training to law enforcement personnel.


Panel Bios

Jonathan Duffy

Jonathan Duffy is a Forensic Chemist at the DEA Mid-Atlantic Laboratory. In this position, he utilizes analytical techniques and chemical instrumentation to analyze exhibits for the presence of controlled substances, provides technical assistance to law enforcement, and testifies as an expert witness in court. Mr. Duffy is a Technical Training Officer, managing the instruction and transition of new chemists. He has also instructed lesson blocks as a Subject Matter Expert for the Basic Forensic Chemists Class. He is a member of the Quality Assurance Committee and the laboratory system’s Forensic Chemist Technical Advisory Committee. While working at the DEA, Mr. Duffy received a Master of Forensic Sciences in Forensic Chemistry from The George Washington University. He received a Bachelor of Science in Forensic Science, Forensic Chemistry Option from The Pennsylvania State University.

Jill Mossman

While working as a Digital Evidence Examiner with the DEA for the last 13 years, Jill Mossman has worked with almost every type of electronic storage device possible.  The Digital Evidence Laboratory provides support by processing and analyzing electronic data in a forensically sound manner and presenting the data to the agents to use for intelligence or prosecution. The last several years Ms. Mossman has specialized in cell phones, focusing on device extraction, encryption and app database parsing.   In addition to her traditional lab work, she has provided cell phone training domestically and internationally, educating law enforcement on best practices in seizing and examining cell phones.

Anna Zadow

Anna Zadow started her career with DEA in June 2002 at the South Central laboratory in Dallas, Texas as a fingerprint specialist.  As a fingerprint specialist with the DEA, Ms. Zadow is responsible for processing drug evidence for latent prints, preserving the latent prints developed, comparing subjects to those latent prints developed, searching unknown latent prints in AFIS, reporting results, testifying in court to the results, and conducting field investigations to include assisting in clandestine laboratory investigations.  In September 2006, Ms. Zadow transferred to the Southeast Laboratory in Miami, Florida.  Prior to the DEA, Ms. Zadow was a crime scene investigator from 1994 to 2002 with two police departments in Texas.  Ms. Zadow obtained a Bachelor of Science degree from Michigan State University in 1991.


Date: Thursday, May 2, 2019
Time: 11 a.m. – 12 p.m. ET

Auditorium, DEA Headquarters
700 Army Navy Drive
Arlington, VA 22202

DEA Museum, [email protected], (202) 307-3463
Kenna Howat Felix, Historian, [email protected], (202) 307-6714

Streaming URL:

Email Questions:
During the event, email questions to [email protected].

This event is free and open to the public.