Gregory D. Lee, M.P.A., is a retired Supervisory Special Agent for the Drug Enforcement Administration (DEA), and is a former instructor at the Federal Bureau of Investigation (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 who will thoroughly review both criminal and civil discovery material and provide you with a written case analysis based on his 30 years of law enforcement experience. His specific areas of expertise include the management of informants, deadly force, use of force, arrest procedures, drug raid planning and execution, undercover operations, surveillance, money laundering, drug identification, clandestine laboratories, terrorism, and police investigative procedures, to name a few.

In his 36th year of service to his country, Greg is an active Reserve Chief Warrant Officer 5/Special Agent with the U.S. Army Criminal Investigation Command.  After being called to active duty as a result of the events of September 11, he spent a year assigned to the Army Operations Center's Anti-Terrorism Operations Intelligence Cell. It was his unique experiences in the investigation of terrorism and international drug trafficking organizations that led to his assignment at the Pentagon. He has a combination of over 35 years of active and reserve military service, primarily in the criminal investigation field, and is a Subject Matter Expert on Counter-Terrorism and Counter-Drug Operations for the U.S. Army Military Police School. He has guest lectured for the Department of Law at the United States Military Academy, West Point and the Defense Intelligence Agency's Joint Military Intelligence Training Center.

Greg literally wrote the book on drug investigations. He is the author of Global Drug Enforcement: Practical Investigative Techniques, Conspiracy Investigations: Terrorism, Drugs and Gangs, and Practical Criminal Evidence. Throughout his DEA career he wrote numerous articles for professional law enforcement publications.