Professional Polygraph & Investigative Services, LLC
“Statewide testing across Michigan”.
I will come to your office if desired and test your clients.
Reports within 24 hours!
Headquarters - Midland, Michigan
Proud to serve all of Michigan.
Midland, Saginaw, Lansing, St. Ignace
and surrounding areas to include the Upper Peninsula.
Phone:
989-233-0665
Email:
Andy@PropolygraphLLC.com
Welcome!
I have spent 25 years serving the State of Michigan and it's great citizens. I recently retired as the Commander of the Michigan State Police Polygraph Section. In this role I have had the opportunity to train the majority of examiners in the state police polygraph section. They are some of the best examiners in the nation. I have had the opportunity to work and review polygraph cases statewide and taught internationally for the Department of Defense. I am excited to now be working for everyone, from attorneys and large law firms, corporations to teach interviewing skills,, and private citizens polygraphs.
Thanks for visiting Professional Polygraph and Investigative Services, LLC. We serve the entire state of Michigan. We are here to deliver the best most reliable testing that mirror police polygraphs. I have trained the 7 of the 10 the current examiners in the Michigan State Police. So if you are tired of your client passing a private polygraph then struggling or failing a police exam look no further. I use the most current testing formats used by the Michigan State Police and local police examiners.
I have lived polygraph for the last 18 years of my career and have developed a reputation of the examiner you want on major case or one that is important to you.
I have been asked to instruct at various schools and conferences. I am an instructor that uses my own cases from confessions that I have obtained from suspects in homicides, criminal sexual conduct cases, robberies and other major cases. The majority of my work has been in criminal sexual conduct cases over the last 18 years.
Andy appears in the A&E television program
Killer Cases - The New Year's Eve Murder
(Season 2 Episode 1)See the program here:
https://play.aetv.com/shows/killer-cases/season-2/episode-1
Testimonials
Far and away the leader in polygraphs. When I have a client in a jurisdiction that will give weight to a polygraph I call Andrew Longuski. He is the best in the business and presents a no-nonsense test that will provide amazing guidance in defending a client.
--
William Amadeo, Grabel and Associates Law Firm
Andy was the Commander of the Michigan State Police Polygraph Section, which fell under my purview as the Director of the Biometrics and Identification Division. His technical aptitude and knowledge in his discipline are outstanding, and when coupled with his relatable personality makes him one of the most productive polygraphists in the business. He is one of the hardest working and most dedicated individuals I have come across in my career, and I am honored to have worked with him.
--
Jeremy Slavish, Ret. Commander, Biometric and Identification Division, Michigan State Police
I have known and worked alongside Andy most of my law enforcement career and have known him to be beyond reproach. Andy’s skills as an interviewer and polygraph specialist are simply the best I have ever witnessed. Andy does not take sides but follows the truth and facts to come up with the reality of the matter at hand. Andy’s leadership, experience, and skills make him an incredible asset for all of your polygraph needs.
-- Retired F/Lieutenant Scott Woodard, Michigan State Police
His character and integrity are above reproach and only matched by his investigative ability. Moreover, he is not only sought for his aptitude, but also for the passion he delivers while training others.
--
Retired Inspector Michigan State Police, John Card
I have known Andy for more than 20 years through the Michigan State Police and I worked with him on the Major Case Unit investigating violent crimes. He is an outstanding person, interviewer, and interrogator. He builds rapport and treats everyone with respect. He is the first person I would contact if you were wanting to prove your innocence.
--
Hilary House, Ret. Trooper Michigan State Police
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