International Polygraph Examiner

With a wealth of international credentials and over thirty years of worldwide experience, John S. Swartz stands as Texas’s foremost expert in credibility assessment. His expertise spans a broad spectrum, from civil and criminal testing to international assessments, making him the go-to choice for courts, law firms, corporations, and decision-makers around the globe.

As a Retired Federal Examiner, John brings an unmatched depth of knowledge to the field. His career began at the United States Department of Justice, where he honed his skills and handled cases ranging from sex offenders to Capital Murder. In state and Federal courts, John is consistently sought after as the authoritative expert witness, thanks to his extensive experience and impeccable credentials.

What sets John S. Swartz apart is his track record of making a real impact. From high-profile cases to complex international assessments, John’s expertise has consistently delivered results. His dedication to maintaining the highest standards in credibility assessment has earned him the trust of Texas Criminal Court Judges.

Ready to leverage John S. Swartz’s expertise for your needs? Contact us today to discover how he can assist you in achieving your goals