Gregory Gilbertson retired from Centralia College in March 2022 after 22.5 years of service as a full and tenured professor of criminal justice. He’s also a former university lecturer, tactically trained police officer, International Police Advisor, Guardian ad Litem, U.S. Army infantry officer, and Distinguished Military Graduate of the U.S. Army Officer Candidate School. After completing his military service, Greg became a police officer in Atlanta and LaGrange, Georgia. In LaGrange he served as a SWAT Team member, senior patrolman, school resource officer, juvenile court investigator, and stakeout squad officer. In Atlanta he served as a police patrolman.

Greg holds a Bachelor’s degree from the University of Washington, and a Master’s degree in Justice Administration from Columbus College (Columbus State University). Greg became a licensed private investigator in 2002. He specialized in criminal defense casework for 12 years. In 2013 he began consulting with attorneys nationwide as an expert witness. He has consulted on over 180 civil rights and criminal cases in 37 states. Greg has testified as an expert witness in the U.S. District courts of Arizona, Louisiana, and Washington State. He has also testified and in the state courts of Washington, Oregon. Illinois, Kansas, and Connecticut. He has helped attorneys secure 29 million dollars in settlements and judgments for their clients.

The origins of Greg’s expert witness casework is found in his service as an International Police Advisor.  In 2008 he deployed to Afghanistan for 13 months and served as a police policy developer to the Ministry of Interior and senior mentor to the Afghan National Police Academy in Kabul .  He assisted the academy commander with all aspects of academy operations for 3000 cadets, faculty, and staff. Previously he deployed to Iraq in 2005 for one year and developed a bachelor’s degree in policing for the Baghdad Police College.