At St. Louis Polygraph LLC, our examiners have administered thousands of Polygraph Examinations in both criminal and civil cases.  These exams were conducted for Federal and Local law enforcement agencies, corporations, and private individuals.  Our examiners are also experienced in the administration of Post-Conviction Sex Offender Testing.  Our examiners were trained by some of the most respected Polygraph Examiners in the field. 

Derek Piasecki is the Lead Examiner and has been conducting Polygraph Exams since 2003.  Brian Hilke has been conducting Polygraph Exams since 2007.   Both Derek and Brian are retired from law enforcement agencies.

Derek and Brian have extensive interview and investigative experience.  Derek is well respected in the field, serving on both State and National Polygraph Boards. 

All exams are conducted in a professional, discrete office location in St. Charles County.  Saturday morning appointments are available at no extra charge to fit your schedule. 

Confidentiality is assured with all clients.

Professional

Both Derek and Brian are members of National and State Polygraph Associations and attend yearly training seminars.  Polygraph Examiners receive the best training at the seminars sponsored by National and State Associations.  

Honest

We will provide a written report for every exam conducted. We will respect all clients’ needs and their confidentiality.

Experienced

Our examiners gained extensive experience while employed with law enforcement agencies. Polygraph Examiners gain the most experience when employed by a law enforcement agency. We have conducted exams for criminal cases to include murder and violent crime cases. 

Please contact us for an appointment or if you have any polygraph examination questions.

636-856-6175

Derek@StLouisPolygraph.com