“The Truth Begins Here

Police Use of Force – False Arrest
Criminal Defense –  Self Defense  

Office: 239.529.2137  Cell: 239.571.1840


Address: 2334 2nd Avenue NE, Naples, FL 34120-3705

“Hic sunt Leones.”

Please scroll down for attorney testimonials.

Hire Your Expert!

An Expert Witness with $16 Million Dollars in Settlements & Judgments

Professor Gregory Gilbertson (Ret.) is an expert winess in police practices, use of force, false arrest, criminal, and self defense casework. As a former tactically trained police officer (SWAT), senior patrolman, stakeout squad officer, juvenile court investigator, school resource officer, and licensed private investigator, Greg has consulted with attorneys in 27 states on 150 civil rights and criminal cases. He has testified in over 40 depositions, several state courts, and the U.S. District Court of Washington State and Arizona. His analysis and insights have helped attorneys secure acquittals in criminal trials and 16 million dollars in civil rights settlements and judgments. Professor Gilbertson retired from Centralia College in March 2022 after 22 years of unblemished service as a full Professor of Criminal Justice. While at Centralia College, Greg concurrently served two years in Iraq and Afghanistan as an International Police Advisor, two years as a Guardian ad Litem, 19 years as a licensed private investigator, and 17 years as a Senior Lecturer for Saint Martin's University and Brandman University. Greg began his career as a U.S. Army infantry soldier. He became a commisioned officer as a Distinguished Military Graduate of the U.S. Army Officer Candidate School. Professor Gilbertson holds a Master's degree in Justice Administration from Columbus College (Columbus State University) and a Bachelor's degree in History from the University of Washington. In Alvarez v. King County,  U.S. District Court Judge Richard A. Jones wrote the following opinion regarding defendant's motion to exclude his testimony:  ““Plaintiff has submitted Mr. Gilbertson’s qualifications, which demonstrate extensive experience in policing. Mr. Gilbertson’s experience includes work as a police officer in Georgia, including assignments as a “SWAT” team officer, superior court investigator, school resource officer, stakeout squad officer, senior patrolman, and patrolman. After his law enforcement career, Mr. Gilbertson went on to became a college professor – where he taught courses on criminal justice - and a private investigator, conducting pretrial investigations for attorneys throughout Washington State in hundreds of criminal cases. The Court finds that, based on his experience, Mr. Gilbertson’s testimony can be expected to have a reliable basis in knowledge and experience.”             FULL BIOGRAPHY

Nenye E. Uche, Esq. Chicago

"In 2015, I took on one of the most publicized police shooting cases in Chicago:  The Estate of Alfontish Cockerham v. The City of Chicago.  The case involved a young man who was was shot and killed by a Chicago police officer while running away.  It was not the strongest case because  society typically gives police officers the benefit of the doubt in cases perceived to involve "a close call."  It was a close call because the incident was captured on video and showed my client dropping a gun while running from the officer.  The officer claimed my client pointed this gun at him just moments before he shot him. Based on this fact pattern, I needed an expert witness with integrity who could convey the same to a jury of twelve people. I found Professor Gilbertson through an attorney who was a former war crimes prosecutor at the international criminal court in The Hague, Netherlands. Apparently, Professor Gilbertson’s  reputation as a expert witness had also caught attention globally.



Attorney & President, UCHE P.C. / 22 W. Washington Street, Suite 1500, Chicago IL 60602 / Phone: (312) 380-5341 or Toll Free: (888) 251-4428 Email: / attorney-bio/

James Bible, Attorney at Law, Seattle

"In February 2016 Che Taylor was shot and killed by two undercover Seattle police officers under suspicious circumstances. In December 2019 I asked Professor Gregory Gilbertson to assist me as my police practices and use of force expert in the Taylor case. Professor Gilbertson analyzed the Taylor shooting and issued a detailed report. In his report Professor Gilbertson exposed several substandard police practices and officer actions which were inconsistent with standardized police procedures. Professor Gilbertson's insights and analysis helped me secure a 1.5 million dollar settlement with the City of Seattle for the Taylor Family. Previously, in July 2018, I retained Professor Gilbertson regarding the case of Josiah Hunter v. The City of Federal Way. This was another excessive force case where Mr. Hunter had been placed in a dangerous choke-hold by a Federal Way police officer. Here again, Professor Gilbertson analyzed the facts of the case, issued a detailed report, and testified in U.S. District Court for the Western District of Washington as my use of force expert.  At trial the jury agreed with Professor Gilbertson’s testimony that the officer used excessive force and awarded Mr. Hunter $640,000.00 in damages. I wish to thank Professor Gilbertson for his work on both cases. His insights, analysis, reports, and trial testimony are always persuasive. I look forward to working with him again on future cases." James Bible, Attorney at Law, Seattle, WA / James Bible Law Group - 14205 SE 36th Street, Suite 100 Bellevue WA 98006 / Phone: (425) 748-4585 or (206) 354-8109 / Email: - Web Site:


“Professor Gilbertson has twice served as my expert in search and seizure and false arrest cases. His analysis and opinions are always spot on. I was impressed with his willingness to process a considerable amount of information. Methodical and thorough, he took the time to interview each client and determine the veracity of the information they provided. His work ethic is extraordinary, and his credentials are unassailable. I highly recommend him to other attorneys.” Darryl Parker, Attorney at Law, Seattle, WA


“Professor Gilbertson brought a high level of professionalism and competence to bear as an expert witness in a murder trial. Once the prosecutor made demands for an expert opinion, he responded quickly and his conclusion were dis-positive. The  judge mentioned the credibility of his report in hearings. We considered Professor Gilbertson's contribution to be highly effective in securing a dismissal with prejudice for our client.” Dr. Stephen Pidgeon, Ph.D., Attorney at Law, Everett, WA


“I have been a personal injury lawyer for over 30 years. I have worked with many experts including Professor Gilbertson. He was our expert for an excessive force case in the U.S. District Court. He provided valuable input on the police on this matter, and on our cross examination of the respondent’s expert. He engaged with the jury and his testimony was solid. I recommend Professor Gilbertson as an expert witness in any case involving police misconduct.”   Patrick Trudell, Attorney at Law, Kirkland, WA



"Professor Gilbertson was an expert in a criminal trial where self-defense was the primary issue. He was accessible, prompt, and thorough. He explained “use of force” and “self-defense” in a manner the jury easily understood. His testimony was an integral factor in achieving a not guilty verdict for our client at trial.” Michael Blanchard, Attorney at Law, New London, CT



To contact Professor Gilbertson call 239.571.1840 or 239.529.2137. You can also email Greg at:

Address: Gregory Gilbertson - GILBERTSON INVESTIGATIONS 2334 2nd Avenue NE, Naples, FL 34120-3705.

Our Guiding Principle & Belief

"The true measure of a man is not where he stands in moments of comfort and convenience, but where he stands at times of challenge and controversy."

The Reverend Dr. Martin Luther King Jr.