Centre for Forensic Neuroscience · Frankfurt am Main
Lie Detector Test and Polygraph Examinations in Frankfurt
Confidential polygraph examinations are available in central Frankfurt am Main at our professional appointment venue on Bockenheimer Landstraße, near Alte Oper. Appointments are conducted strictly by prior arrangement following a confidential case assessment.
The service is available to private clients, legal representatives, businesses and professional referrers. English-language appointments are available; interpreter requirements should be discussed before confirmation. Every examination is personally conducted by Dr Keith Ashcroft, Principal Forensic Polygraph Examiner.
Call Dr Keith Ashcroft directly: +44 (0)7790 732828
Confidential advice from Dr Keith Ashcroft
+44 7790 732828No obligation · Strictly confidential · Personally conducted examinations
Private Polygraph Appointments in Frankfurt am Main
Confidential polygraph examinations can be arranged at our professional Frankfurt appointment venue, centrally located near Alte Oper.
Frankfurt Examination Venue
Bockenheimer Landstraße 17–19 Ground Floor 60325 Frankfurt am Main GermanyThe venue provides a private, professional setting for the pre-test interview, physiological data collection and post-test review.
Available strictly by prior appointment. The examiner is present at the Frankfurt venue only for confirmed appointments. This is not a walk-in service.
Arranging a Frankfurt Appointment
Appointments may be arranged for private clients, legal representatives, businesses and professional referrers. Initial case assessment and appointment planning are completed confidentially before the examination date.
Not every enquiry will result in a confirmed appointment. The case must be reviewed for suitability before an examination can proceed. For further details on the assessment process, see our suitability and pre-screening information.
Submit Your Case for ReviewInternational Appointment Eligibility
International appointments are generally reserved for complex legal, corporate, safeguarding, therapeutic and specialist forensic examinations where significant forensic expertise and structured forensic interviewing are required. These include criminal defence investigations, historical abuse allegations, immigration credibility assessments, executive vetting, serious workplace misconduct, and professional disciplinary proceedings.
Routine domestic relationship disputes are normally referred to an appropriate local examiner where a suitable practitioner is available. This does not mean that all private matters are declined — where the circumstances are sufficiently complex or where no appropriate local examiner exists, private cases may be considered on merit.
Specialist Forensic Support
Sports Integrity and Sports Law Investigations
The Centre for Forensic Neuroscience provides specialist forensic polygraph examinations to support investigations within the sports integrity and sports law sectors. Examinations are conducted by Dr Keith Ashcroft, a chartered investigative psychologist and experienced forensic polygraph examiner, and are available internationally by arrangement.
How Forensic Polygraph Examinations Support Sports Investigations
Sports governing bodies, integrity units, professional clubs and sports lawyers increasingly face complex investigations requiring independent credibility assessment. Match-fixing investigations, competition manipulation allegations, corruption within sporting organisations, bribery allegations, and athlete misconduct investigations all present challenges where traditional evidence-gathering may be insufficient to resolve disputed factual accounts.
A forensic polygraph examination does not determine truth or guilt. It provides structured investigative interviewing, scientifically validated physiological data collection, and transparent scoring methodology that produces investigative decision support within a wider evidential framework. The examination is one component of a broader investigative process and should be considered alongside other available evidence.
Examinations may assist investigations involving spot-fixing, coach misconduct, safeguarding concerns within sporting environments, financial misconduct, contract fraud, agent and intermediary misconduct, confidentiality breaches, and whistleblower investigations. They may also support internal disciplinary proceedings, arbitration preparation, and integrity unit investigations where an independent credibility assessment could provide additional information to assist investigators and legal representatives.
All examinations follow the standards and procedures of the American Polygraph Association and ASTM International (Committee E52 on Forensic Psychophysiology). Physiological recording is conducted using validated instrumentation, and scoring follows published, peer-reviewed methodologies. Results are reported transparently, including numerical scores and their interpretation, enabling instructing parties to evaluate the findings within the context of their wider investigation.
Who May Instruct an Examination
Forensic polygraph examinations for sports integrity and sports law matters may be instructed by a range of professional and institutional bodies. Examinations are accepted only where the matter is suitable for structured polygraph assessment, voluntary participation is confirmed, and the instructing party has a legitimate investigative or disciplinary purpose.
Sports Integrity Appointments
International sports integrity examinations are generally undertaken only where the matter involves serious professional, regulatory or legal issues requiring specialist forensic expertise. Routine enquiries without a clear investigative, disciplinary or legal context are unlikely to be accepted.
Evidence-Informed Forensic Methodology
Sports integrity and professional misconduct investigations demand rigorous, defensible methodology. The Centre employs structured examination procedures including comprehensive pre-test investigative interviewing, validated physiological recording using state-of-the-art computerised polygraph systems, and transparent numerical scoring algorithms. This evidence-informed practice ensures that examination findings can withstand scrutiny in disciplinary proceedings, sports arbitration, and — where applicable — criminal or civil proceedings.
Dr Ashcroft's background in investigative psychology and forensic neuroscience provides additional analytical capability beyond standard polygraph practice, supporting the interpretation of findings within the broader investigative context.
Related Specialist Services
From Enquiry to Examination
Every polygraph appointment in Frankfurt follows a structured, transparent process. Appointments are confirmed only after case review and are conducted by Dr Keith Ashcroft personally.
Submit Your Enquiry
Submit a confidential enquiry through the contact page or call Dr Ashcroft directly. Provide a brief outline of the matter, including the nature of the issue and preferred timescale.
Suitability & Case Review
Your case is reviewed for medical, psychological and ethical suitability. The scope of the examination is discussed, and suitable test questions are agreed before the appointment is confirmed. See our pre-screening guidance for details.
Confirmed Appointment
A confirmed appointment is arranged at the Frankfurt venue. The fee is agreed in advance. You may wish to review our preparation guidance before attending.
Pre-Test Interview
A thorough pre-test interview is conducted at the venue. Every question is discussed and agreed with the examinee beforehand. No surprise questions are ever asked.
Physiological Data Collection
Non-invasive sensors record physiological data (respiration, electrodermal activity, cardiovascular parameters) while the agreed questions are asked. For more about how the polygraph works, see our examination process explanation.
Post-Test Discussion & Reporting
A post-test discussion follows the data collection phase. Written reporting is available where agreed in advance. Preliminary observations are typically communicated during or shortly after the appointment.
Our Commitment to Every Examinee
Polygraph Services Available in Frankfurt
Specific-issue polygraph examinations are available for individuals, legal representatives, employers and professional referrers. Every examination follows APA standards and a structured, transparent process.
Criminal Defence & Serious Allegations
Forensic polygraph examinations supporting criminal defence investigations, including historical sexual abuse allegations, serious criminal charges, false allegation cases, and complex matters where credibility is central to the legal strategy. Dr Ashcroft is qualified as an Expert Witness and experienced in preparing detailed forensic reports for legal proceedings.
Learn MoreLegal & Professional Instructions
Legal professionals may instruct the Centre for credibility assessments in criminal, civil, family and other matters. Dr Ashcroft is qualified as an Expert Witness. Instructions from German and international legal representatives are welcome subject to case review.
Learn MoreWorkplace & Corporate Investigations
Polygraph examinations for employees under investigation for specific allegations of theft, fraud, misconduct, insider threats or breaches of trust. Pre-employment screening is also available for roles where trust and security are paramount.
Learn MoreTherapeutic & Disclosure Examinations
The Centre supports therapeutic professionals through disclosure polygraph examinations, where appropriate. These assist in supporting treatment compliance and accountability within a therapeutic context.
Learn MoreNot sure whether a polygraph is appropriate?
Dr Ashcroft will discuss your circumstances confidentially and advise whether a polygraph examination is suitable for your case. You can also review our suitability guidance before making contact.
Fees and Appointment Guidance
How Fees Are Quoted
Fees are quoted individually according to the nature and scope of the instruction. Relevant factors may include case complexity, preparation and document review, question formulation, examination time, venue and travel requirements, reporting and professional follow-up.
A straightforward private examination may require a different scope of work from a legally instructed matter, therapeutic disclosure examination or workplace investigation. Differences in fees reflect the professional resources required by each instruction, not a different level of methodological rigour. Legal, employer and organisational instructions may also be quoted on a professional day-rate basis where appropriate.
The fee will always be confirmed in advance, after a short discussion about the circumstances, before any appointment is agreed.
Venue and Confidentiality
Frankfurt examinations are conducted at the professional appointment location on Bockenheimer Landstraße, which provides a private, controlled environment suitable for polygraph procedures.
In accordance with American Polygraph Association recommendations, examinations are not conducted in domestic (home) settings, as it is rarely possible to control the environment to a satisfactory degree.
All personal information and examination results are handled with complete discretion. For details, see our privacy and confidentiality policy.
To receive a fee estimate, please contact us with a brief outline of the matter, preferred timescale and any reporting requirements.
Discuss Your Case and FeesWhy Choose Dr Keith Ashcroft?
Many providers do not disclose the name or qualifications of the examiner who will conduct your test. At the Centre for Forensic Neuroscience, every polygraph examination in Frankfurt am Main is conducted personally by Dr Keith Ashcroft, Principal Forensic Polygraph Examiner.
Named, Qualified Examiner
Dr Ashcroft is trained at American Polygraph Association–accredited and British Accreditation Council academies, including advanced training at the Behavioural Measures UK Polygraph Training Centre. You will always know who is conducting your examination.
Professional Memberships
Member in good standing of the American Polygraph Association, National Polygraph Association (USA), Director of the UK Polygraph Association, American Association of Police Polygraphists, the Society for Psychophysiological Research, and the Society of Forensic Interviewers.
Ethical Boundaries
All examinations must be voluntary. The Centre reserves the right to decline any instruction, and does not accept cases where coercion, threats or punitive motives are suspected. We are independent, impartial and objective.
Confidentiality & Suitability
Every case is pre-screened for medical, psychological and ethical suitability before any appointment is confirmed. Results and reports are handled with complete discretion. Dr Ashcroft is also qualified as an Expert Witness.
English-Language Service in Germany
Polygraph Appointments for German and International Clients
English-language polygraph appointments are available in Frankfurt am Main for German and international clients. Enquiries concerning a Lügendetektortest, Polygraphentest or private Polygraphenuntersuchung in Frankfurt can be submitted in English. Those searching for a Lügendetektor Frankfurt am Main are welcome to make contact. Interpreter requirements should be discussed during the initial case assessment.
The Centre for Forensic Neuroscience serves clients throughout the Rhein-Main region, including Frankfurt am Main, Hessen and the wider area. The registered office of the Centre remains in the United Kingdom, with Frankfurt available as a professional appointment location.
Frankfurt Polygraph: Frequently Asked Questions
We specialise in providing specific issue examinations using only accepted protocols and standards for our clients in Frankfurt am Main, Germany, according to 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 X Acquisition System, have a high-resolution 32-bit analogue-to-digital conversion for superior recording and analysis capability for all casework.
Learn More