ABOUT US
Professional, clinical polygraph examinations conducted by a specialist.
EXAM
LOCATION
Sebastopol, California
(Address shared upon booking)
Hours
Monday–Saturday
8am - 3:30pm
Phone
(707) 800-9911
Veritas
Mission
At DO Polygraph, Inc., we affirm the truth accurately, clinically, and compassionately. We believe in truth without trauma, performing thorough scientific testing with care.
Background
David Ower has conducted thousands of polygraph examinations for clinicians, courts, law enforcement, and private clients like you since 2016. DO Polygraph, Inc. is merely an extension of his unwavering commitment to the whole truth as well as the whole person.
Continued Education
DO Polygraph, Inc. requires our examiners to exceed the minimum required continuing education hours for the American Polygraph Association (APA) and California Association of Polygraph Examiners (CAPE). Each of these associations tracks approved continuing education units (CEU) as part of ongoing membership and certification requirements. Some recent CEUs completed by our lead examiner include the following:
National Polygraph Association
Psychopathy, Pharmacology (22 CEU), January 2018
California Association of Polygraph Examiners
PCSOT/Legal Update (12 CEU), March 2018
John E. Reid & Associates
Advanced Interrogation (24 CEU), April 2018
California Association of Polygraph Examiners
Countermeasures, PCSOT (10 CEU), October 2018
National Polygraph Association
Best Practice, Offenders, etc. (12 CEU), January 2019
American Association of Police Polygraphists
Case Study, Physiology, etc. (14 CEU), May 2019
American Polygraph Association
National Training Seminar (26 CEU), August 2019
CAPE
PCSOT Question Construction, etc.
(12 CEU), October 2019
CAPE
PCSOT Update, Screening Tests, etc.
(16 CEU), October 2020
CAPE
Practical Polygraph, Interrogations, Sadistic Offenders, etc.
(16 CEU), October 2021
CAPE
Persuasive Pre-Test, Test Question Formulation, Meta-Analysis, Etc.
(16 CEU), April 2022
CAPE
Open-Source Media, Pre-Employment, PCSOT, and CASOMB.
(14.75 CEU), May 2023
CAPE
Leadership in Today’s Law Enforcement, Generational Interviewing and Techniques, etc.
(24 CEU), April 2024
APA/CAPE
National Training Seminar
(32 CEU), August 2025

