Police Excessive Force, False Arrest, and Self-Defense Expert Witness

Professor Gregory Gilbertson owns and operates Gilbertson Investigations – a licensed, bonded, and insured private investigations agency based in Olympia, Washington. Greg and his colleagues, Jansen S. (Scott) Cheek, D. Glenn Foster, Special Agent Christopher Holland (FBI Ret.), Judge Nelson Hunt (Ret.), Coroner Warren McLeod, Samuel Small, and attorney Jean Jorgensen, are focused on assisting attorneys as expert witnesses in police excessive force, false arrest, self-defense, and police misconduct cases. Each of Greg’s colleagues have their own area of specialization. Please click on the “Experts” tab above to learn more. 

In just four years Gilbertson Investigations has provided expert analysis on over 60 cases in 14 states. Greg has personally completed two-dozen pre-trial depositions and testified in both state and federal courts. Please click the Casework” tab above to review agency’s case history.

Greg began his career as a Distinguished Military Graduate of the U.S. Army Officer Candidate School at Fort Benning, Georgia. He then served as a commissioned officer of infantry soldiers. Later he became a police officer with the cities Atlanta and LaGrange, Georgia. In Atlanta he served as a Zone 3 police patrolman. In LaGrange Greg served as a senior police officer (Corporal), SWAT Team member, juvenile court investigator, and school resource officer. Duty related injuries and two major surgeries ended his law enforcement career. Greg then became a criminal justice professor at a Washington State community college. He’s also worked as a private investigator specializing in criminal defense casework for 16 years. 

The origins of Greg’s expert witness casework can be traced to his service as an International Police Trainer in Iraq and Afghanistan. The U.S. Department of Defense and U.S. Department of Justice vetted his curriculum vitae and qualified him as a Subject Matter Expert in Police Practices and Procedures. Greg then deployed, lived, and worked with NATO Forces for over two years in active war zones. He supported and supervised the training of Iraqi and Afghan national police officers in Baghdad and Basrah, Iraq, and Kabul, Afghanistan.  In summation, Greg’s experience as police officer, SWAT Team member, college professor, private investigator, and international police trainer affords him the moral and intellectual authority to analyze and explain complex police incidents and and law enforcement concepts to jurors in a manner they can easily understand.

An evolving demand for expert witnesses by civil rights and criminal defense attorneys prompted Greg to recently expand his agency practice. He now partners with colleagues nationwide in a number of related fields, to include:

  • Law Enforcement Training Jansen S. Cheek
  • Legal Research & ConsultingJudge Nelson Hunt (Ret.)
  • Information Technology & Artificial IntelligenceSamuel Small
  • Employment Law & Wrongful TerminationsJean Jorgensen, J.D.
  • Cold-Case Homicides, Interview & Deposition AnalysisD. Glenn Foster
  • Medicolegal Death Investigations Coroner & Professor Warren McLeod
  • Federal Cases, Interview & Deposition Analysis – Special Agent Chris Holland (Ret.)

Please review the professional credentials of Greg’s colleagues by clicking on the Experts tab above.

If your client has been victimized by acts of police excessive force, false arrest, or police misconduct by a local, state or federal law enforcement officer, or if they’ve acted in self-defense, call Gilbertson Investigations. Their insight, knowledge, and experience has helped many attorneys achieve positive outcomes for clients, and they can help you too.

“All that is necessary for evil to prevail is that good men do nothing.” Edmund Burke