Over a 38-year practice, Dr. Pettingill has been the subject of Daubert and Frye challenges in multiple jurisdictions. His methodology — grounded in U.S. government data sources, peer-reviewed economic literature, and transparent reporting — has consistently survived challenge.
Methodology
Daubert Survival Record
Dr. Pettingill's record of admissibility under Daubert and Frye challenges.
Frequently Asked
Frequently Asked
What underpins admissibility?
Transparency. Every number in every report ties back to a documented source; every assumption is stated; every method is supported by peer-reviewed literature or government data.
Considering Dr. Pettingill on your matter?
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