Welcome to Professional Polygraph and Investigative Services LLC.
We serve the entire state of Michigan.
Andrew Longuski has spent 25 years serving the state of Michigan, and it's great citizens. He was the commander of the Michigan State Police Polygraph Section. He has trained the Michigan State Police in polygraphs, interviews, and interrogation.
Experience
- Over 25 Years of Polygraph Experience
- President of Michigan Association of Polygraph Examiners
- Former Polygraph Section Commander of the Michigan State Police
- International Instructor for the Department of Defense
- Former Director and Instructor of the Michigan State Police Polygraph Program
- Michigan State Police Task Force for Flint Serial Stabber
- Michigan State Police Academy Instructor
- Delta College Police Academy Instructor
Contact Us
Our Services
- Criminal Polygraph Testing For Defense Attorneys
- Criminal Polygraph Testing For Private Individuals
- Civil Polygraph Testing For Defense Attorneys And Private Citizens
- Post Conviction Sex Offender Testing
- Interview And Interrogation Instruction
- Pre-employment Polygraph Testing
Reviews
- 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
Media
Andrew Longuski appears in the A&E television program
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