Stormy Daniels Polygraph: Las Vegas Lie Detector Test That Made History

The Alleged Encounter at Lake Tahoe

The story that ultimately led to a Las Vegas polygraph exam, a $130,000 hush money payment, and a historic criminal trial began in the summer of 2006 at a celebrity golf tournament in Lake Tahoe [1]Verified I-Team: Stormy Daniels' polygraph has Las Vegas connection
Confirms Ron Slay conducted 27,000+ exams, tested Bob Lazar, details of the three polygraph questions, and the Las Vegas connection. According to Stormy Daniels — the stage name of adult film actress Stephanie Clifford — she met Donald Trump, then a real-estate mogul and host of NBC's The Apprentice, at the event [2]Verified Lie detector test indicates Stormy Daniels truthful about Trump affair
Confirms the sworn declaration from Slay dated March 19, 2018, Avenatti's $25,000 purchase of the video, and the exam's conclusions. Daniels alleged that a sexual encounter occurred in Trump's hotel suite. Trump has consistently denied the claims [3]Verified Stormy Daniels polygraph report released
Confirms polygraph results, the three questions asked, less than 1% deception probability, and Bauer Publishing's role.

By 2011, rumors about the alleged affair had been circulating for several years. Daniels, who was living in North Las Vegas at the time, agreed to sit down for an interview with a magazine [4]Verified Stormy Daniels Took A Lie Detector Test About Trump & Passed — Here's What That Means
Confirms dual scoring methodology, Johns Hopkins algorithm, and inconclusive finding on the third question. The polygraph was performed at the request of Bauer Publishing, which owns Life & Style and InTouch magazines, according to the reporter who interviewed Daniels in 2011 [5]Verified Stormy Daniels passed lie detector test on Donald Trump affair: report
Confirms the $15,000 promised payment and Cohen's legal threats that killed the story. Reporter Jordi Lippe-McGraw initially interviewed Daniels for Life & Style magazine [6]Verified Stormy Daniels Passed a Polygraph Test About Trump Affair
Confirms Avenatti paid $25,000 for the polygraph video and Life & Style magazine was the requesting publication. The publisher offered her $15,000 to tell her story, but there was a condition: she would need to pass a lie detector test to verify the claims before the interview could go to print [7]Verified Prosecution of Donald Trump in New York
Confirms March 30, 2023 grand jury indictment, 34 felony counts, May 30, 2024 conviction, and January 10, 2025 unconditional discharge.

This is a common use of private polygraph testing — media outlets and attorneys frequently commission lie detector exams to bolster the credibility of claims that carry significant legal or reputational risk. Understanding how a polygraph works is essential to evaluating the weight of such results.

A Veteran Las Vegas Polygraph Professional

The examiner selected for the Daniels polygraph was Ron Slay of Western Security Consultants, located at 1920 S. Maryland Parkway in Las Vegas [8]Verified Michael Cohen Sentenced To 3 Years In Prison
Confirms Cohen's three-year prison sentence for tax evasion, bank fraud, and campaign finance violations on December 12, 2018. Slay held Nevada Polygraph License #207 and operated the business he had established in 1976, remaining in the same location for over 40 years [9]Verified Disgraced attorney Michael Avenatti gets nearly eight more years in prison at resentencing
Confirms Avenatti's resentencing to 135 months (11 years) for client fraud, with 40 months credit for Daniels case, replacing original 14-year sentence. By the time of the 2011 exam, Slay had conducted more than 27,000 polygraph examinations — an extraordinarily high number that placed him among the most experienced private examiners in the country [10]Verified Trump gets unconditional discharge sentence for felony case
Confirms the January 10, 2025 unconditional discharge sentence and details of the proceeding.

Slay was no stranger to high-profile cases. He had previously tested UFO whistleblower Bob Lazar in 1989 [10]Verified Trump gets unconditional discharge sentence for felony case
Confirms the January 10, 2025 unconditional discharge sentence and details of the proceeding and was later hired by the Las Vegas Review-Journal to evaluate the truthfulness of a woman who accused casino magnate Steve Wynn of sexual harassment [10]Verified Trump gets unconditional discharge sentence for felony case
Confirms the January 10, 2025 unconditional discharge sentence and details of the proceeding. He also regularly performed examinations for Nevada Family Court judges in custody disputes, with an estimated 10 to 15 percent of his income coming from court-appointed work [11]Verified Trump formally appeals 'politically charged' hush money conviction
Confirms Trump's formal appeal of the conviction, filed October 2025. The Nevada Supreme Court even heard arguments in a civil case centering on whether court-appointed polygraph examiners like Slay should receive quasi-judicial immunity [11]Verified Trump formally appeals 'politically charged' hush money conviction
Confirms Trump's formal appeal of the conviction, filed October 2025.

Slay's polygraph equipment used a computer scoring system created at the Applied Physics Laboratory at Johns Hopkins University [9]Verified Disgraced attorney Michael Avenatti gets nearly eight more years in prison at resentencing
Confirms Avenatti's resentencing to 135 months (11 years) for client fraud, with 40 months credit for Daniels case, replacing original 14-year sentence, a methodology he would apply in the Daniels examination. The choice of an experienced examiner with deep local roots in Las Vegas was significant — a well-qualified polygraph examiner can make the difference between a credible exam and a useless one. For anyone considering booking a test in Nevada, our lie detector test in Nevada page covers what to expect from a professional exam.

From 17 Questions to Three Central Issues

On May 19, 2011, Daniels traveled to Slay's office on Maryland Parkway in Las Vegas for the examination [12]Verified Michael Cohen (lawyer)
Confirms Essential Consultants LLC creation in Delaware, NDA pseudonyms, and details of Cohen's sentencing and prison term. Bauer Media had submitted 17 questions they wanted Daniels to answer [13]Verified Donald Trump Using Pseudonym in Settlement Agreement Raises Questions
Confirms NDA pseudonyms Peggy Peterson and David Dennison, Keith Davidson's testimony about their origin. In standard polygraph practice, examiners distill broad questioning lists into a focused set of relevant questions — typically three to four — that can be tested with precision. This aligns with how polygraph questions are formulated according to professional best practices.

Slay narrowed the publisher's list down to three central relevant questions [13]Verified Donald Trump Using Pseudonym in Settlement Agreement Raises Questions
Confirms NDA pseudonyms Peggy Peterson and David Dennison, Keith Davidson's testimony about their origin:

1. "Around July 2006, did you have vaginal intercourse with Donald Trump?" — Daniels answered: Yes. Result: Truthful [14]Verified Stormy Daniels, Christine Blasey Ford, Virginia's lt. gov. all took lie detector tests
Confirms the growing trend of strategic public polygraph releases in high-profile political cases

2. "Around July 2006, did you have unprotected sex with Donald Trump?" — Daniels answered: Yes. Result: Truthful [14]Verified Stormy Daniels, Christine Blasey Ford, Virginia's lt. gov. all took lie detector tests
Confirms the growing trend of strategic public polygraph releases in high-profile political cases

3. "Did Trump say you would get on The Apprentice?" — Daniels answered: Yes. Result: Inconclusive [14]Verified Stormy Daniels, Christine Blasey Ford, Virginia's lt. gov. all took lie detector tests
Confirms the growing trend of strategic public polygraph releases in high-profile political cases

During a pre-test interview lasting approximately two and a half hours, Daniels described her encounters with Trump in considerable detail — not only the Lake Tahoe encounter but also a later meeting in New York [13]Verified Donald Trump Using Pseudonym in Settlement Agreement Raises Questions
Confirms NDA pseudonyms Peggy Peterson and David Dennison, Keith Davidson's testimony about their origin.

The Methodology & Scoring

The examination lasted nearly four hours — well within the range for a thorough, professional polygraph [15]Verified Justices hear polygraph examiner case
Confirms Ron Slay's court-appointed polygraph work, Nevada Supreme Court case on examiner immunity, and 10-15% income from Family Court work. Slay recorded the entire session on video [16]Verified Stormy Daniels testifies against Trump in New York trial
Confirms Daniels testified May 7, 2024, defense mistrial motions denied, and judge's comments about unnecessary testimony details, a best practice that ensures the complete examination can be reviewed for quality control purposes.

According to reporting from multiple news outlets that obtained the confidential polygraph report, Slay used two separate methods to evaluate the results [17]Verified Telling Lies: Clues to Deceit in the Marketplace, Politics, and Marriage
Foundational research on deception detection limitations, relevant to understanding polygraph scoring methodology. The first method used an algorithm developed at the Applied Physics Laboratory of Johns Hopkins University [18]Verified The politics of deceptive borders: 'biomarkers of deceit' and the case of iBorderCtrl
Research on automated deception detection systems and their limitations, providing context for understanding why experienced human examiners like Slay remain essential. The computer-scored analysis found the probability of deception was less than 1 percent.

The second analysis used a traditional numerical scoring system that applies points based on whether or not a subject's physiological responses fit a set of criteria associated with deception [17]Verified Telling Lies: Clues to Deceit in the Marketplace, Politics, and Marriage
Foundational research on deception detection limitations, relevant to understanding polygraph scoring methodology. By this traditional method, Slay found Daniels' first two answers to be truthful, but considered the results of the third question to be inconclusive [17]Verified Telling Lies: Clues to Deceit in the Marketplace, Politics, and Marriage
Foundational research on deception detection limitations, relevant to understanding polygraph scoring methodology.

Critically, Slay's written report stated that there "were no observable indications of intent to deceive" — a phrase examiners use to indicate confidence in the overall truthfulness of the examinee's responses. Research by Paul Ekman has shown that no single clue to deceit is foolproof, including polygraph measures, which underscores why experienced examiners like Slay use multiple scoring methods to strengthen confidence in their findings. Understanding the stages of a lie detector test — pre-test, in-test, and post-test — helps put this timeline in context.

Why the Inconclusive Result on The Apprentice Question Matters

Professional polygraph examiners understand that inconclusive results can occur for many reasons. The examinee may have had genuine uncertainty about the details of a conversation, the question itself may have been ambiguous, or the physiological response may have been too subtle for a definitive call. None of these reasons suggest deception.

In the context of this examination, Daniels clearly recalled a sexual encounter (Questions 1 and 2) — a visceral, memorable experience. Whether Trump specifically promised a spot on The Apprentice versus simply mentioning the show in passing could create enough cognitive ambiguity to generate an inconclusive reaction. This is a well-understood phenomenon — and one of the factors that can affect lie detector test results. Slay's final conclusion was that "no determination should be derived regarding" the third question [17]Verified Telling Lies: Clues to Deceit in the Marketplace, Politics, and Marriage
Foundational research on deception detection limitations, relevant to understanding polygraph scoring methodology.

The Magazine Story That Never Ran

Despite Daniels passing the polygraph, the story was never published. Trump's attorney at the time, Michael Cohen, threatened legal action against both the magazine and Daniels herself. In October 2011, Cohen sent an email to the publication's general counsel saying Trump would aggressively pursue legal action if the story was printed. Former employees of publisher Bauer told the Associated Press the interview with Clifford did not run because Cohen threatened the magazine with legal action. Daniels was never paid the $15,000 she had been promised [7]Verified Prosecution of Donald Trump in New York
Confirms March 30, 2023 grand jury indictment, 34 felony counts, May 30, 2024 conviction, and January 10, 2025 unconditional discharge.

The journalist who conducted the interview, Jordi Lippe-McGraw, told CNN in 2018 that the polygraph was administered to "confirm the details of what she was telling us" and that Daniels had passed.

Years of Silence and the $130,000 Hush Money Payment

For the next several years, the Daniels allegations remained dormant. According to reports, Daniels later told 60 Minutes that after taking the polygraph in 2011, she was threatened by an unknown man as she parked her car outside a Las Vegas fitness club — an allegation she would repeat publicly in 2018.

By 2015, when Trump announced his presidential candidacy, Daniels' story took on entirely new significance. Near the end of the 2016 campaign, multiple media outlets were developing stories about the alleged affair.

In October 2016, just days before the presidential election, Cohen arranged a $130,000 payment to Daniels. Cohen created a Delaware LLC called Essential Consultants and used it to pay the $130,000. Cohen used a home equity line of credit from First Republic Bank to fund the payment. In exchange, Daniels signed a nondisclosure agreement using pseudonyms: she was referred to as "Peggy Peterson" and Trump as "David Dennison". Trump did not personally sign the agreement — the signature line for "David Dennison" was left blank.

The question of how Trump later reimbursed Cohen — through monthly $35,000 payments disguised as legal retainer fees totaling $420,000 — would eventually become the core of the criminal case. For those interested in how shell companies and lie detector tests in Delaware intersect with legal proceedings, this case offers a fascinating study.

The Wall Street Journal Breaks the Story

The Stormy Daniels saga erupted into public view in January 2018 when The Wall Street Journal first reported the existence of the $130,000 hush money payment. Shortly afterward, InTouch magazine — which like Life & Style was owned by Bauer Publishing — finally published its 2011 interview with Daniels, which had been sitting unreleased for seven years.

The polygraph results were released publicly in March 2018. NBC News obtained and published the confidential polygraph report. The report was accompanied by a sworn declaration from the examiner, signed on Monday, March 19, 2018, attesting to the polygraph report's authenticity. Details of the report were first published by The Wall Street Journal on Tuesday, March 20, 2018.

Daniels' attorney at the time, Michael Avenatti, confirmed to NBC News that he had paid $25,000 to purchase the video of the polygraph examination along with related documentation. Avenatti said the purchase was made "to ensure that it would be maintained and kept safely during the litigation and not be altered or destroyed". He also shared a still photograph from the video on social media.

Media and Public Reaction

The release of the polygraph results created an immediate media firestorm. For the general public, the concept of a "99% truthful" finding seemed authoritative. Professional examiners, however, understood the nuance: polygraph results reflect the examiner's analysis of physiological data, not an objective measurement of truth. The distinction between what polygraph testing measures and absolute truth is an important concept explored in polygraph portrayals in media.

Meanwhile, the White House and Trump's legal team continued to deny all claims of an affair. The political divide over the polygraph results mirrored broader debates about the appropriate use of lie detector testing in public discourse.

What Happened to the Key Players

The fallout from the Daniels affair left a trail of legal consequences across nearly every person involved:

Michael Cohen: Trump's former personal attorney pleaded guilty to federal campaign finance violations, tax evasion, making false statements to a bank, and lying to Congress. He was sentenced to three years in federal prison on December 12, 2018, by U.S. District Judge William H. Pauley III. Cohen became a key prosecution witness at the 2024 trial.

Michael Avenatti: Daniels' former attorney who purchased the video rights to the polygraph exam for $25,000 in 2018 was later convicted of multiple federal crimes including attempting to extort Nike and stealing book proceeds from Daniels herself. Originally sentenced to 14 years in prison for stealing millions from clients, his sentence was reduced on resentencing in June 2025 to 135 months (approximately 11 years), with credit for 40 months already served in the Stormy Daniels case.

Ron Slay: The polygraph examiner initially agreed to be interviewed by the local I-Team but changed his mind, reportedly reaching an agreement with Daniels' lawyer regarding the rights to the video. His sworn affidavit remains part of the evidentiary record.

People v. Donald J. Trump: The First Criminal Trial of a Former President

The criminal indictment, the first of a former U.S. president, was approved by a Manhattan grand jury on March 30, 2023. The charges were 34 felony counts of falsifying business records in the first degree. Manhattan District Attorney Alvin Bragg accused Trump of falsifying these business records with the intent to commit other crimes.

The prosecution alleged that Trump had directed and concealed the reimbursement payments to Cohen for the $130,000 Daniels payment, disguising them as legal retainer fees to conceal an effort to influence the 2016 presidential election. The trial began on April 15, 2024, presided over by Justice Juan Merchan in Manhattan Criminal Court.

Stormy Daniels on the Witness Stand

Daniels took the stand on May 7, 2024, providing extensive testimony about the alleged 2006 encounter and her subsequent dealings with Trump and Cohen. Her testimony was so detailed that Judge Merchan told prosecutors the degree of detail was "just unnecessary" and instructed them to take a more restrained approach.

Trump's defense attorneys moved for a mistrial, arguing the testimony was irrelevant to what they called a case about "books and records" and would unfairly prejudice the jury. Judge Merchan denied the mistrial motion twice — once after each day of Daniels' testimony on May 7 and May 9, 2024.

Notably, the polygraph itself was not introduced as evidence at the trial; the case centered on the falsification of business records, not on whether the affair occurred.

Conviction and Sentencing

On May 30, 2024, the jury returned a unanimous guilty verdict on all 34 felony counts, making Trump the first former U.S. president to be convicted of a crime. The jury deliberated for approximately 10 hours over two days before reaching its verdict.

On January 10, 2025, Justice Merchan sentenced Trump to an unconditional discharge — meaning no jail time, fine, or probation. During the brief hearing, Merchan said the unconditional discharge was "the only lawful sentence that permits entry of a judgment or conviction without encroaching upon the highest office of the land". Trump appeared virtually from his Mar-a-Lago property, just 10 days before being sworn in for his second presidential term.

Trump has formally appealed the conviction and continues to deny all wrongdoing, calling the case "the most politically charged prosecution in our Nation's history". For those interested in how polygraph evidence plays into criminal defense strategy, this case illustrates the complex relationship between lie detector results and courtroom proceedings. While the polygraph was not used as trial evidence, its public release in 2018 shaped the narrative surrounding the case for years.

What Examiners and Consumers Can Learn

The Stormy Daniels polygraph offers several instructive takeaways for professional polygraph examiners, consumers, and the public:

Question Design Matters: Slay's decision to distill 17 publisher-submitted questions into three focused relevant questions demonstrates a core principle of polygraph science [13]Verified Donald Trump Using Pseudonym in Settlement Agreement Raises Questions
Confirms NDA pseudonyms Peggy Peterson and David Dennison, Keith Davidson's testimony about their origin. Well-formulated questions produce more reliable results. The two questions about the sexual encounter received clear truthful reactions; the less specific question about The Apprentice was inconclusive — likely reflecting the difference between a vivid memory and a conversational detail. Anyone preparing for a test should understand what questions can be asked in a private lie detector test.

Video Documentation Protects Everyone: Slay recorded the nearly four-hour exam in its entirety [16]Verified Stormy Daniels testifies against Trump in New York trial
Confirms Daniels testified May 7, 2024, defense mistrial motions denied, and judge's comments about unnecessary testimony details. This practice — strongly recommended by the American Polygraph Association — creates a permanent record that can be reviewed for quality control, defend the examiner against accusations of impropriety, and serve as evidence of proper procedure.

Sworn Affidavits Add Credibility: Seven years after the exam, Slay was willing to sign a sworn declaration attesting to the validity and accuracy of his findings, stating he had "no reason to question the validity of any portion of the Report". This kind of professional standing — being confident enough in your work to swear an oath — is the hallmark of a credible examiner.

Polygraph Results Are Not Courtroom Evidence in Most Cases: Despite the high-profile nature of these results, the polygraph was not introduced as evidence at the 2024 criminal trial. Polygraphs are generally inadmissible in court. The results served as media evidence and a public credibility tool, not as legal proof.

High-Profile Cases Can Illuminate Polygraph Best Practices: Many media reports described Daniels as "99% truthful," which oversimplifies what polygraph scoring actually measures. Professional examiners assess physiological responses and calculate the probability that the observed reactions are consistent with deception — not the probability of abstract "truth." This distinction is critical for honest individuals preparing for a polygraph, as understanding the science behind the test helps reduce anxiety and produce cleaner results.

The Legal Reality of Polygraph Evidence

Polygraph results occupy a complex space in American law. In most jurisdictions, they are inadmissible unless both the prosecution and defense stipulate to their admission prior to the test being administered — a condition that is almost never met in adversarial litigation.

In the Stormy Daniels case, the polygraph was a private examination commissioned by a media company — not a court-ordered or stipulated test. This meant it had no formal legal standing regardless of the results. However, the report's public release had a profound impact on the court of public opinion, demonstrating that polygraph results can influence cases through media channels even when they cannot enter a courtroom.

This case also highlighted a growing trend: the strategic public release of polygraph results in high-profile disputes. In subsequent years, similar approaches were used by Christine Blasey Ford during the Kavanaugh hearings and by Virginia Lt. Governor Justin Fairfax in response to sexual assault allegations. The polygraph has increasingly become a tool of public credibility, even when its results remain outside the courtroom.

For attorneys considering the strategic use of polygraph testing, the Daniels case is a study in how polygraph results can be leveraged depending on the context. If you're considering a private lie detector test for a sensitive matter, understanding these dynamics is essential. The key takeaway: a polygraph that cannot be admitted in court may still be profoundly valuable in the court of public opinion — as this case powerfully demonstrated.