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May 14, 2026 • Polygraph / Recovery Support

Disclosure Polygraph Examinations and Compulsive Sexual Behaviour: A Guide for Partners, Therapists and Professionals

By Dr Keith Ashcroft, Centre for Forensic Neuroscience

A professional guide to how disclosure-focused polygraph examinations may support partners, therapists, and professionals involved in recovery from compulsive sexual behaviour.

Introduction

Hidden sexual behaviour, pornography use, online sexual activity, undisclosed contact, and repeated boundary breaches can create significant uncertainty, distress, and loss of trust within relationships and professional settings. For partners, therapists, solicitors, and safeguarding professionals, the question of what has actually occurred — and what remains undisclosed — can feel impossible to resolve through conversation alone.

A disclosure-focused polygraph examination may provide a structured process for exploring agreed, behaviour-specific questions. However, it is important to understand from the outset: a polygraph examination is not therapy, diagnosis, or proof of truth. It is one structured element that may sit within a wider process of accountability, support, and informed decision-making.

The term 'sex addiction' is commonly used by the public and in relationship recovery settings. Clinically, some presentations may be discussed in terms of Compulsive Sexual Behaviour Disorder, which is recognised in ICD-11. A polygraph examination is not a clinical diagnosis and should not replace therapy or medical advice.

Why Disclosure Matters in Recovery and Relationship Repair

When trust has been broken by hidden sexual behaviour, partners and professionals often face a difficult choice: accept uncertainty, pursue difficult conversations, or seek a more structured approach to understanding what has occurred.

Properly prepared disclosure can reduce uncertainty by addressing specific, defined concerns. However, unstructured or partial disclosure — particularly when driven by pressure, guilt, or a desire to control the narrative — can increase distress rather than relieve it.

Key considerations include:

  • Partners may need clarity around specific behaviours or agreed relationship boundaries, not broad reassurances.
  • The process should be respectful, consent-based, and carefully managed.
  • Disclosure is most useful when it sits within a wider support or decision-making framework, not as a standalone event.
  • A polygraph examination does not heal or repair relationships automatically. It may support a process, but the outcome depends on the people involved and the wider support around them.

What Is a Disclosure-Focused Polygraph Examination?

A disclosure-focused polygraph examination is a structured examination around agreed, behaviour-specific questions. It may relate to pornography use, online sexual behaviour, messaging, contact, meetings, sexual history, or relationship boundaries.

It is important to understand what this process is — and what it is not:

  • Questions must be clear, specific, relevant, and suitable for yes/no answers.
  • It is not an interrogation.
  • It is not therapy.
  • It is not a diagnosis.
  • It is not a guarantee of truthfulness.
A disclosure-focused polygraph examination can help explore specific, agreed questions within a structured process. The result should be interpreted cautiously and in context.

Who May Be Involved?

The Examinee

The person being examined must provide informed consent before the examination proceeds. They should understand the process, its purpose, and its limitations. Where a disclosure-focused examination is being considered, it is often helpful for the examinee to prepare a written disclosure or summary of the relevant behaviour in advance.

Critically, the examinee should not be coerced or pressured into attending. An examination conducted without genuine, informed consent is unlikely to produce meaningful results and may cause harm.

The Partner

Partners seeking clarity around agreed relationship boundaries may benefit from the structured process a polygraph examination provides. However, the partner should not be placed in the role of interrogator. Their concerns should be translated into clear, testable questions through proper question formulation.

Partners should understand that the examination cannot guarantee truthfulness. Independent therapeutic or professional support may be helpful in managing the emotional impact of the process and the result, whatever the outcome.

The Therapist or Supporting Professional

Where a therapist or counsellor is involved, roles should be clearly defined. The therapist manages the therapeutic context. The polygraph examiner conducts the structured examination. These roles should not be blurred.

Written context or professional input from the therapist may help define suitable questions and ensure the examination is properly scoped and aligned with the wider support process.

Legal or Safeguarding Professionals

In some cases, a solicitor, safeguarding officer, or other professional may be involved. They may help define risk, consent considerations, legal concerns, or safeguarding issues relevant to the examination.

An examination should not proceed if it may prejudice ongoing legal proceedings or create unmanaged safeguarding risk. These issues should be identified and addressed during the suitability review.

Preparing for the Examination

Preparation is essential for a useful and ethically sound examination. Before the appointment, it may be helpful to:

  • Clarify the purpose of the examination.
  • Identify the relevant time period being considered.
  • Define the behaviours or boundaries being examined.
  • Decide who will receive the report.
  • Consider whether therapist, solicitor, or safeguarding input is needed.
  • Prepare a written disclosure if appropriate.
  • Avoid vague questions such as "Have you told me everything?" unless they have been properly narrowed and defined.

Question Formulation: Why Specificity Matters

The quality of a polygraph examination depends significantly on the quality of the questions. Good questions are:

  • Behaviour-specific
  • Time-limited
  • Relevant to the agreed scope
  • Clear and unambiguous
  • Capable of yes/no answers
  • Agreed in advance between the examiner and the examinee

Poor questions are vague, emotionally loaded, broad, speculative, designed to shame or trap, or outside the agreed scope.

Examples

Poor wording: "Have you lied about everything?"

Safer alternative: "Since [agreed date], have you had sexual contact with anyone other than your partner?"

Poor wording: "Are you hiding anything else?"

Safer alternative: "Since [agreed date], have you used a second phone or hidden account to contact someone for sexual purposes?"

The examiner will review and finalise all questions before the examination proceeds. Questions that are too broad, ambiguous, or emotionally loaded may be revised or excluded.

The Examination Process

Each examination follows a structured procedure designed to ensure clarity, informed consent, and a respectful process throughout.

  1. Initial Enquiry and Suitability Review — The purpose, context, suitability, consent, and possible risks are discussed before any commitment is made.
  2. Consent and Scope — The scope of the examination, report recipient, confidentiality limits, and question areas are agreed.
  3. Pre-Examination Interview — The examiner reviews the background, explains the process, and confirms each question is understood by the examinee.
  4. Polygraph Examination — Sensors record physiological responses while the examinee answers agreed yes/no questions.
  5. Analysis and Report — Results are analysed and summarised in a written report. The report should be interpreted cautiously and in context.

Possible Outcomes and Next Steps

A polygraph examination may produce a result that is consistent with no significant response, a significant response, or an inconclusive outcome.

The result should not be treated as a standalone verdict. It should be considered alongside the wider context, the examinee's disclosure, any therapeutic or safeguarding input, and the purpose for which the examination was requested.

Where a significant response or inconclusive result occurs, the next step may be further discussion, additional disclosure work, therapeutic support, legal advice, safeguarding review, or a decision not to proceed further. The appropriate response depends on the circumstances.

Note: The informal terms "pass" and "fail" are sometimes used in everyday language but can be misleading. A polygraph result is a professional interpretation of physiological data, not a simple binary verdict.

When a Polygraph Examination May Not Be Appropriate

Not every situation is suitable for a polygraph examination. An examination may not be appropriate where:

  • There is coercion or a lack of informed consent.
  • The examinee is experiencing an acute mental health crisis.
  • There are safeguarding concerns requiring immediate professional action.
  • The allegations are unclear or speculative.
  • The process is being used to shame, punish, or control another person.
  • The questions are too broad or emotionally loaded to be properly tested.
  • There are ongoing legal proceedings where the examination may create prejudice.
  • There is an expectation that the result will "prove" truth or fix the relationship.

What a Polygraph Examination Cannot Do

It is important to be clear about the limitations of any polygraph examination. A polygraph examination cannot:

  • Diagnose sex addiction or Compulsive Sexual Behaviour Disorder.
  • Replace therapy, counselling, or medical assessment.
  • Guarantee truthfulness.
  • Prove guilt or innocence in criminal proceedings.
  • Replace safeguarding procedures.
  • Resolve relationship conflict on its own.
  • Test vague, broad, or emotionally loaded questions.
  • Decide whether a relationship should continue.

Working With Dr Keith Ashcroft

Dr Keith Ashcroft provides private polygraph examinations for disclosure, accountability, and recovery support where the purpose is clearly defined and the process is appropriate for the circumstances.

Each instruction involves:

  • A careful suitability review before any examination is agreed.
  • Clear explanation of informed consent, process, and limitations.
  • Behaviour-specific question formulation agreed in advance.
  • Discreet and professional handling of sensitive information.
  • A professional written report summarising the methodology, result, and relevant context.
  • Clear communication of what the examination can and cannot determine.

Conclusion

Disclosure-focused polygraph examinations can provide structure and accountability in situations where hidden behaviour, uncertainty, and broken trust make conversation alone insufficient. However, they are not therapy, diagnosis, or proof of truth.

A polygraph examination should sit within a wider framework of consent, professional support, informed decision-making, and careful judgement. The aim is clarity, accountability, and informed next steps — not certainty, blame, or a substitute for the difficult work that recovery and relationship repair require.

If you are considering a polygraph examination for disclosure or recovery support, the first step is a confidential conversation about whether the process is appropriate for your situation.


This article is provided for general information only. A polygraph examination is not therapy, counselling, medical diagnosis, legal advice, or a guarantee of truthfulness. Results should be interpreted cautiously and in context. Where there are safeguarding, legal, or mental health concerns, appropriate professional advice should be sought.


Dr Keith Ashcroft is a Chartered Psychologist, polygraph examiner, and member of the American Polygraph Association at the Centre for Forensic Neuroscience. To discuss whether a disclosure-focused polygraph examination may be appropriate for your circumstances, contact Dr Ashcroft for a confidential consultation.

Considering a Disclosure-Focused Polygraph Examination?

If you are considering a polygraph examination for disclosure, accountability, or recovery support, Dr Keith Ashcroft can discuss whether the process is appropriate for your circumstances.