Credibility Assessment of Maryland Polygraph Services
When the truth be told, seek a professional polygraph service

Credibility Assessment of Maryland Polygraph Services


                                         William F. Gonnelli  
                           Retired FBI Supervisory Special Agent, Polygraph Examiner

 Polygraph Services

Attorneys - Business - Government Agencies - Private Individuals

Call on a real polygraph professional, who will provide quality results on which you can trust. Bill Gonnelli's years of FBI polygraph and law enforcement experience brings world class credibility and reliability to his polygraph test results.  The last thing you want to do is spend money on an inaccurate polygraph examination. Inaccurate test results can cost you more than just your money; It can cost you your job, your relationship, your reputation, or in criminal matters, harm your defense. The examiner does make a difference, and Bill’s expert results have been used by judges and prosecutors countless times.

Credibility Assessment of Maryland offers polygraph services throughout Maryland, Delaware, Pennsylvania, Washington DC .

Areas where Polygraph has proven to be invaluable:

  • Criminal Defense
  • Clearing the Wrongfully Accused
  • Verification of Information & Statements
  • Domestic Disputes
  • Sex Crimes & Allegations of Sexual Misconduct
  • Law Enforcement
  • Government & Security Screening
  • Employee Thefts
  • International Examinations in Support of Vetting for U.S. Entities