Polygraph Interviews and Examinations
Forensic & Civil Credibility Assessment
FORMATION: The Centre for Forensic Neuroscience was established in 2002, with our main offices in Manchester, Glasgow, Liverpool and London, provides both forensic and civil credibility assessment services (often referred to as lie detection) internationally.
EXAMINERS: We have the UK’s largest team of dedicated expert credibility assessment examiners, with Dr Keith Ashcroft as the Principal Polygraph Consultant, and also a Chartered Investigative Psychologist/Scientist. He is a member in good standing at the National Polygraph Association (USA), the American Association of Police Polygraphists, director member of the UK Polygraph Association, the Society for Psychophysiological Research, as well as the American Polygraph Association. He has been trained at American Polygraph accredited & British Accreditation Council academies, including advanced training at the Backster School of Lie Detection established in 1959, Behavioural Measures UK Polygraph Training Centre operated by Behavioral Measures, as well as the Peak Credibility Assessment Center; All examiners are available for instruction in your location throughout the United Kingdom, Europe, the Middle East and the rest of the world. We take instructions from Corporations, Government Agencies and Private Individuals. We cover domestic polygraph testing, quality assurance of polygraph examinations, sexual abuse, safeguarding, employee theft, insider attacks, sexual addiction, pre-employment, paired testing, asset forfeiture testing, criminal exoneration, professional misconduct, immigration, sham marriages and asylum, criminal defence, post-conviction sex offender testing, intelligence verification, and sports integrity testing – expert witness testimony: Court of Arbitration for Sport.
DOMESTIC POLYGRAPH TESTING
Domestic polygraph tests are those in which the examinee and examination address issues that involve the credibility of statements regarding interpersonal behaviour between spouses, live-in partners, non-domiciled marital or intimate partners, children, parents, extended family members and blended family members.
Providing independent quality control of reviews of polygraph examinations (International).
Provision of training/lectures on polygraph related subjects.
Victim and alleged perpetrator testing in those having legal representation only. Please note that the opinions of such examinations are based on the interpretation of the physiological data and are therefore investigatory in nature, and other supporting evidence should be taken into account before any actions are taken. In cases where polygraph examinations are not feasible, we can employ a Visual Assessment of Sexual Preference.
In legal terms, a child is defined as anyone under the age of 18. Therefore, safeguarding children is about protecting all those under 18 from harm. This can be done by investigating individuals with access to children, either in an employment context or within an intimate or family relationship.
Polygraph testing for private-sector employees who are under investigation for allegations relating to economic loss to their employers.
Prevention, detection and investigations of insider attacks.
The polygraph is used within a therapeutic setting to assist in disclosure, sobriety and relapses in sex addiction; as well as treatment resistance etc.. We receive referrals from various therapists who offer proven psycho-educational programmes for the treatment of sex and pornography addiction and support programmes for partners. Please note that we cannot be instructed in cases where the partner views a polygraph interview and examination as the only way of regaining trust (there must be additional sources). In addition, there must not be any evidence of punitive/vindictive motives as opposed to therapeutic considerations for seeking a therapeutic polygraph.
We provide polygraph screening testing for Public and Private sector companies, as well as periodic honesty testing, including drug screening. Our services include psychometric testing using the Holden Applicant Screening Measure. The Holden Applicant Reliability Measure was developed by Dr Ronald Holden at Queen’s University and has been further researched by Dr Angela Book at Brock University. This dynamic psychometric instrument provides valuable insights on employment candidates to save resources related to recruitment and training.
PAIRED TESTING (Marin Protocol)
Used in situations where one of two opposing witnesses is most likely being deceptive. Effectively used in mediation contexts.
ASSET FORFEITURE TESTING
For identifying concealed assets.
Polygraph testing for those who have been granted leave to Appeal (N.B. ~ in the UK this cannot form the basis of appeal against conviction) (Pro Bono).
Polygraph testing for those alleged acts of misconduct or accused of same.
IMMIGRATION, SHAM MARRIAGES AND ASYLUM
Polygraph testing of individuals seeking asylum is used to determine the validity of the claims of the petitioner in immigration cases. The statements of the petitioner requesting asylum can be verified by a polygraph test. The results of the test can assist in making an informed decision with regard to granting or withholding asylum.
Forensic / Criminal matters: such as homicide, sexual violence, theft, fraud, sabotage, and espionage. Allegations of sexual abuse are subject to our enhanced service with two forensic polygraph examiners. CFN provides solicitors and lawyers with an assessment as to the credibility of the defendant and witness in criminal matters.
POST-CONVICTION SEX OFFENDER CREDIBILITY TESTING
To effectively manage sex offenders in the community. Examinations for Denial – Sexual History – and Maintenance/Monitoring, which is conducted in conjunction with Therapists and Probation Officers.
Polygraph testing to assess the value of critical intelligence sources.
SPORTS INTEGRITY CREDIBILITY TESTING
Polygraph testing for sports legal matters (international), as well as Expert Witness Testimony.
We specialise in providing specific issue examinations using only accepted protocols and standards in accordance with the American Polygraph Association and ASTM International (committee E52 on Forensic Psychophysiology). We employ strict quality control procedures, as well as using two examiners to confirm results. Our state-of-the art computerised polygraph systems, such as the Limestone Paragon Acquisition System, have a High Resolution 24 bit Analog to Digital Conversion for superior recording and analysis capability.
Frequently Asked Questions:
- You can schedule a polygraph interview and examination (lie detector test) by using our contact form, or by calling us directly on: 07790732828 to speak directly with an examiner, so we can provide an in-depth description of the process, fees, advice, and guidance for the examinee in readiness for polygraph testing.
- When requested, we can have an examiner conduct the interview and examination at an office in your location to satisfy the required optimal testing environment; therefore our fees reflect this best practice level of service.
- In accordance with the American Polygraph Association recommendations, and good practice, we do not conduct tests in a home environment.
- Please note our fees are dependent upon the gravity of the issue to be investigated and the distance from our test centres.
- A retainer fee is normally required to secure the appointment. We use SquareUp for all financial transactions and billing.
- The results/opinion is given within the interview/examination process, or soon thereafter if a peer review is in operation.
- A written report will be given on request.
- In forensic cases a second examiner will peer review all of the data and analyses.
MUST HAPPEN ON voluntary basis
Why is a retainer fee required? A significant number of clients fail to show up to their appointments, therefore, this fee covers all the time and effort provided in setting up the procedure (which is non-refundable). In addition, there may be attempts to use the threat of a polygraph examination against the accused; therefore we will not engage with the client until a retainer fee has been paid to mitigate these possible scenarios.
The retainer fee is “to retain the services of the examiner” at the allocated time and place.
neutral testing environment
Failing a polygraph examination
it takes 2 hours or more
Please also note that the whole process takes around two hours or more to complete. It involves an full interview to determine a statement of the facts, as well as the use of the polygraph instrument to collect data.
single issues question formats
R1 Did you take the money from the First bank in Mosley Street, Manchester last Thursday?
R2 Did you take the money from the First bank located in Mosley Street, Manchester last Thursday?
R3 Did you take the money that First bank in Mosley Street, Manchester on Thursday last week?
Furthermore, the answer to each question is limited to either ‘yes’ or ‘no’. Ideal questions must be: Concise, be clearly understandable to the examinee, not be presumptive of guilt, not test for hypothetical intentions, or, about future behaviours, nor state of mind, or ask for an opinion, and lastly legalisms, as well as medical/diagnostic terms, should be avoided. In addition, one should never test for more than one issue per relevant question, and address primary details, rather than teritary facts.
The primary relevant questions must specify the action or behaviour as closely as the recalled mental image of the issue being investigated.
HOW TO PREPARE
Any additional issue must be done with a separate polygraph test. Examinees will be sent information on how to prepare for the test and be evaluated for suitability according to various criteria; such as for example:
- Be free of any serious illness.
- The examinee should not have been subjected to any accusatory interviews prior to the examination.
- The examinee must not be under the influence of alcohol or substances of abuse at the time of the test.
- The examinee must have had a reasonable amount of sleep prior to the test.
- The examinee must be sufficiently hydrated and had something to eat prior to the test.
- At least one finger or thumb must be nail varnish/or false nail – free to ensure that the blood oxygen levels can be accurately determined.
- COVID 19: Please inform the examiner prior to your appointment if you have symptoms of a loss of taste or smell, a persistent cough, fever, a headache plus fatigue; as well as if any close contact is self-isolating due to COVID 19.
- The test results relate to what the examinee perceives.
- Not everyone is suitable for testing due to individual physiological and psychological differences and states.
- The clarity of issues being tested.
- Number of issues being tested.
How many Questions can be asked?
How does the polygraph instrument work?
How the polygraph instrument identifies the particular arousal pattern for each channel, as it relates to the determination of truth or deception, does not rely on fight, freeze or flight i.e. threat of punishment, consequences of being caught lying or even psychological set. Nor is it a conditioned response, or related to anxiety (there is no basis in research for this). These notions are outdated and irrelevant to modern polygraph science. Current understanding refers to what is known as the ‘orienting response’ to novel or important stimuli, which are intrinsically related to experiences in autobiographical memory, emotional salience and the act of lying requiring increased cognitive processing. Specifically, it takes more cognitive activity to lie than to tell the truth because you need to construct a narrative, so the degree of cognitive processing can be relevant in determining deception. This collection of underlying neural processes give rise to increased autonomic arousal that is routinely detected by the polygraph instrument. Thus, essentially, we are analyzing the strength of attention as determined by autonomic arousal.
How much does it cost - fees?
Our fees depend on the complexity of the investigation and the disbursements for travel and serviced offices, where necessary. The standard fee that will be quoted is for the polygraph interview and examination, plus a verbal report.
Who can be present?
Only the examiner and the examinee can be present when the actual polygraph interview and examination takes place. As recommended by the American Polygraph Association, which ensures the whole process can be conducted in a controlled environment.