Iowa Polygraph Services
Providing Top-Notch Polygraph Service in Iowa & The Midwest
"EyeDetect+ represents the next step in polygraph evolution."
- Don Krapohl, Former U.S. Federal Prosecutor
When the truth really matters, you need more than guesswork—you need proven accuracy. At Iowa Polygraph Services, we’ve spent years helping individuals, employers, and legal professionals uncover reliable answers with confidence. Whether you’re navigating a workplace concern, a legal dispute, or a personal matter, our goal is to deliver results you can trust.
What sets us apart is our range of advanced tools and techniques. By combining time-tested methods with cutting-edge lie-detection technology, we achieve accuracy that consistently stands out in the industry. Serving clients throughout the Midwest, Iowa Polygraph Services is here to give you the clarity and confidence that only the truth can provide.
Lie-Detection Tests With Iowa Polygraph
You Can’t Hide Your Lying Eyes
The EyeDetect
With the EyeDetect test from Iowa Polygraph, we facilitate answering questions, providing a user-friendly mouse and mouse pad system. Simply press the green button for true and yes responses, while the red button is used for false and no responses. During this, our technology will pick up on eye detection, analyzing behaviors when answering the series of true or false questions.
Using the most advanced form of lie detection technology, the team at Iowa Polygraph are professionals in conducting comprehensive tests to ensure the most precise results.
The EyeDetect+ Automated Polygraph
Along with our usual eye detection tests, Iowa Polygraph also provides the option to include an automated polygraph using EyeDetect. This test measures the participant’s pulse and heart rate, with our private investigators asking a series of questions to effectively analyze their behavior in response.
With the combination of the EyeDetect technology and automated polygraph, you can be rest assured you’ll be getting truthful answers- especially with its proven 89-91% accuracy. At Iowa Polygraph, we know how important it is for you to make a well informed decision. Whether you’re an attorney, employer, or individual, we can help you get the results you need.
This document provides a quick side-by-side comparison between two common truth verification tools used in investigations and screenings: the Standard Polygraph & EyeDetect, and Plus* Testing.
| Feature | Standard Polygraph | EyeDetect – EyeDetect + |
|---|---|---|
| FeatureTechnology | Standard PolygraphMeasures heart rate, respiration, blood pressure, and skin conductivity | EyeDetect – EyeDetect +Tracks Eye movement, pupil dilation, and other ocular responses. EyeDetect + Can Measures heart rate, Blood pressure, respiration, Skin conductivity. |
| FeatureInvasiveness | Standard PolygraphRequires sensors to be attached to the body | EyeDetect – EyeDetect +Non-invasive (no physical contact) |
| FeatureTest Duration | Standard Polygraph60 to 90 minutes | EyeDetect – EyeDetect +30 minutes |
| FeatureAccuracy | Standard Polygraph85% to 88% | EyeDetect – EyeDetect +85% to 92% |
| FeatureResult Time | Standard PolygraphSeveral hours to 1 day | EyeDetect – EyeDetect +Immediate (within minutes) |
| FeatureBest Use Cases | Standard PolygraphCriminal cases, civil disputes, infidelity, pre-employment | EyeDetect – EyeDetect +Criminal cases & Civil, Pre Employment, infidelity, Law Enforcement, Theft, Sexual Misconduct, Child Custody |
| FeatureAdmissibility in Court | Standard PolygraphSometimes admissible (varies by jurisdiction) | EyeDetect – EyeDetect +Sometimes admissible (varies by jurisdiction) |
| FeatureStress Sensitivity | Standard PolygraphCan be influenced by anxiety or nervousness | EyeDetect – EyeDetect +Less influenced by external stress |
| FeatureClient Preference | Standard PolygraphTraditional polygraph examination, scored by an examiner. Inconsistency: Different examiners may interpret the same data differently. Influenced by human factors and bias, or the examiner’s beliefs. | EyeDetect – EyeDetect +EyeDetect Polygraph a contemporary and rapidly expanding technology that utilizes a computer algorithm to assess facial expressions. It eliminates personal bias, ensuring that the results are objective and not influenced by the examiner’s mood, fatigue, or unconscious biases. |
VerifEye
VerifEye is a mobile app for iOS or Android phones that quickly and accurately validates truth by measuring involuntary eye behavior. At Iowa Polygraph, we can help administer these tests to analyze behaviors for areas such as employment, identity, creditworthiness and claims. VerifEye’s technology will look at changes in pupil diameter, eye movement, blinks, fixations and more.
These tests have an 80% accuracy rate, scored through a logistic regression algorithm. The team at Iowa Polygraph will work with you to develop test questions to give you the honest answers you need.
Schedule Your Polygraph Examination
Please contact our office for current pricing. The average polygraph exam typically ranges between $300–$750, depending on the type and number of questions involved.
Whether you're an individual seeking clarity or a professional looking for reliable results, Iowa Polygraph is here to help. Ready to move forward? Contact us today to schedule your exam.
What to Know Before Your Appointment
Only the examinee may attend the appointment, and no drugs or alcohol should be used beforehand. A signed release is required before testing. Results are typically emailed the same day and will show as Pass, Fail, Inconclusive, or Unable to Test. For the most accurate results, polygraph exams should focus on specific past actions.What Our Clients Are Saying About Us
“Detective Brooks and his team went over and beyond! I solicited service which was last minute on my part and very time sensitive. He and his staff acted quickly and more than stepped up to the plate. Detective Brooks showed me compassion and understood the sensitivity of my situation. I received more than I could ever expect from his services. He gave me the closure that I needed to move forward.”
- Tracy J -
“I called Brooks on Friday, and asked for surveillance of a commercial location. They inspected Monday morning and sent me over 50 photos. I had a supplier that owed me $75,000. When I called that morning, I told him he was under surveillance. I had the check overnight on Tuesday morning. The results were fantastic. Ernie Moody, Heartland Ag Services, Springfield, IL”
- Ernie M -
“Quickly responded. Very professional service from investigator and office staff members. Would highly recommend!”
- Janelle N -
“Brooks got the answers I needed in a short order. I will be definitely use them again.”
- Klatt Painting -
“Detective Brooks & staff did a great job with the service I needed. Would highly recommend!”
- Teresa P -
About Iowa Polygraph
Who We Are
With Iowa Polygraph, you get exceptional service from the preferred detective agency, Brooks Brothers Investigations, in the Midwest. We bring many years of combined experience to every investigation, plus the latest high-tech equipment and state-of-the-art techniques. We've earned the respect of our clients through our many successful accomplishments. We take on cases throughout Iowa, as well as operating nationwide. Our agency is family-owned and has a long history in law enforcement dating back to 1912, assisting law firms, insurance companies, and cities assisting in all types of investigations.
