Gregory D. Lee

Gregory D. Lee

Criminal Justice Consultant & Expert Witness

Olympic Peninsula California or Florida Sequim, WA 98382

About the Expert

Located in both WA and CA, Mr. Lee is a Criminal Justice consultant and expert witness in police procedures, drug enforcement and criminal investigations. Over 30-years of law enforcement experience. Retired Supervisory Special Agent for the Drug Enforcement Administration (DEA). Former instructor for the DEA Office of Training in Informant Management.

Areas of Expertise

  • Criminal Informants
  • Narcotics / Drug Trafficking

Expert's Profile

Located in Central California's beautiful Monterey Peninsula, Gregory D. Lee, M.P.A. is a retired Supervisory Special Agent for the Drug Enforcement Administration (DEA). He is a former instructor for DEA's Office of Training located at the FBI Academy.

He provides a wide range of consulting and expert witness services for the legal community and law enforcement agencies. Mr. Lee's expertise covers the entire spectrum of drug law enforcement. He is a qualified expert witness in state and federal courts who will thoroughly review both criminal and civil discovery material and provide you with a written case analysis based on his over 30-years of law enforcement experience. His specific areas of expertise include police procedure, informant use and management, deadly force, use of force, arrest procedures, raid planning and execution, undercover operations, physical and electronic surveillance, money laundering, drug identification, clandestine laboratories, terrorism, and investigative procedures, to name a few.

Mr. Lee is a frequent radio talk show guest and is frequently contacted by media outlets for his perspectives.

Greg literally wrote the book on drug investigations. He is the author of Global Drug Enforcement: Practical Investigative Techniques, published by CRC Press (2004). Prentice Hall publishes his other two books, Conspiracy Investigations: Terrorism, Drugs and Gangs (2005) and Practical Criminal Evidence (2006). He also wrote "The Global Drug Trade and its Nexus to Terrorism," which is chapter 11 of Volume II, Part II, of Countering Terrorism and Insurgency in the 21st Century: International Perspectives, Praeger Security International/Greenwood Publishing Group, Inc. (2007).

Let him review your material so that you can make an informed decision about your case.

Personal Achievements


  • Master of Public Administration in Justice Administration
  • B.S. Sociology/Criminology with minor in Vocational Education
  • A.A. Law Enforcement


  • California Community College Teaching Credential
  • California Peace Officer Standards & Training Advanced Certificate


  • Association of Former Federal Narcotic Agents
  • National Rifle Association - Life Member
  • Veterans of Foreign Wars - Life Member
  • Reserve Officers Association - Life Member


  • Global Drug Enforcement: Practical Investigative Techniques, CRC Press (2004)
  • Conspiracy Investigations: Terrorism, Drugs and Gangs, Prentice Hall (2005)
  • Practical Criminal Evidence, Prentice Hall (207)

Military service

  • Retired CW5/CID (Criminal Investigation Division) Special Agent, US Army Reserve

Prior assignments

  • Contact me for complete client listing

Percentage of time spent as expert

  • 25%

Number of expert assignments / year

  • 12

More Information

Listed in the Following States

Gregory D. Lee is listed with ExpertPages in the following jurisdictions: All US Regions and States, Canada (all Provinces).