Can I arrange a polygraph examination in Japan?

Japan enquiries are accepted for individual case review. CFN first considers suitability, methodology, location, language and logistical feasibility. An examination is arranged only if the instruction is accepted and the requirements can be confirmed.

Do you conduct polygraph examinations in Tokyo?

Tokyo is normally the most practical location to consider for a Japan-based instruction, but no appointment is automatic. The feasibility, date, venue and travel arrangements are confirmed individually following case review. Other Japanese locations may be considered by prior arrangement.

What is the Concealed Information Test?

The Concealed Information Test is a recognition-based methodology. It examines whether physiological responses differentiate a critical item that is meaningful because it is recognised from plausible alternatives. It does not directly detect lying or prove guilt.

Is a Concealed Information Test suitable for every investigation?

No. A defensible CIT normally requires appropriate critical details that have remained sufficiently protected, suitable alternatives and careful control of possible information contamination. Many cases are not suitable for this methodology.

How much does a polygraph examination in Japan cost?

Fees are quoted individually after case review. The quotation reflects the professional work and resources required, which may include document review, question formulation, examination time, venue, travel, interpreting, reporting and follow-up where relevant.

Can a polygraph examination be conducted in Japanese?

CFN examinations are normally conducted in English. If language assistance may be required, interpreter suitability and the effect on examination methodology must be assessed in advance. An interpreter cannot be added automatically.

Will I receive a written report?

Reporting depends on the agreed scope of instruction. Where a written report forms part of that scope, it is prepared after analysis and any necessary quality review. A written report is not automatically included in every instruction.

Centre for Forensic Neuroscience · Japan Case Review

Professional Polygraph Examinations in Japan

Japan-based and international instructions considered individually, including Tokyo appointments by prior arrangement.

CFN accepts enquiries concerning polygraph examinations in Japan. Each case is reviewed before any examination is agreed to determine suitability, methodology, logistical requirements and the professional work required.

Request a Confidential Case Review Discuss an Instruction

Consultation is required before suitability, location or an appointment can be confirmed.

Confidential advice from Dr Keith Ashcroft

+44 7790 732828

English-language case management · Individual suitability review · Prior arrangement

International Instructions

Japan-Based Instructions, Assessed Individually

Professional polygraph examinations in Japan begin with a confidential case review. Suitability, methodology, location and logistical feasibility are considered before any appointment is agreed.

A Structured Forensic Process

A professional polygraph examination is not simply the use of an instrument. CFN considers the purpose of the instruction, the examinee’s suitability, the factual issue, the available information, question formulation and the appropriate examination methodology.

Where an examination proceeds, relevant physiological activity is recorded and analysed using recognised scoring methods. Interpretation remains confined to the defined issue and the evidential limitations of the procedure.

Explore CFN’s Polygraph Service

Case Review Comes First

Japan enquiries are accepted for individual case review. The feasibility, location and arrangements for an examination are confirmed following consultation.

Tokyo is the principal location likely to be considered. Other locations in Japan may be considered by prior arrangement, depending on the requirements of the case.

Submit Your Case for Review

Professional Rationale

Why Clients Instruct CFN

Legal representatives, investigators, corporate decision-makers, therapists and private clients approach CFN when the instruction requires careful formulation, methodological judgement and clear professional boundaries.

Scientific and Forensic Method

Methodology is selected for the defined question; no procedure is treated as universally applicable.

Case-Specific Assessment

Suitability, documentation, question scope, safeguarding and logistics are reviewed before acceptance.

Specialist CIT Knowledge

CFN’s background includes advanced work concerning recognition-based Concealed Information Testing.

Clear Case Management

Instructions are managed in English, with scope, arrangements and reporting requirements agreed in advance.

Recognition-Based Assessment

Japan and the Concealed Information Test

The Concealed Information Test (CIT) examines whether physiological responses differentiate information that is meaningful because it is recognised from information that should be equally plausible to someone without relevant knowledge.

Japan has an important history of scientific and operational work involving concealed-information testing, including research into physiological responses, cognition and recognition.

Unlike conventional comparison-question methodology, which compares responses across relevant and comparison questions within a structured examination, the CIT uses a recognition-based design. A critical item is presented among plausible alternatives to assess whether responses differentiate information known to the examinee. A CIT does not directly detect lying, prove guilt or establish how information came to be known.

CFN has specialist experience and training in CIT methodology. Dr Keith Ashcroft’s background, as recorded elsewhere on this site, includes specialist CIT training through Japan’s National Research Institute of Police Science (NRIPS). This professional background does not imply current affiliation with, or endorsement by, NRIPS, Japan’s National Police Agency or any Japanese authority.

Where sufficient protected case information exists, CIT suitability may be considered during the initial case assessment.

When a CIT May Be Appropriate

CIT feasibility depends on the information architecture of the case. Recognition-based testing may be considered only where the available material permits a controlled and professionally defensible design.

Protected Critical Information

The case contains specific, relevant details that a person without pertinent knowledge should not recognise.

Plausible Alternatives

Suitable control alternatives can be constructed so that the critical item is not obvious from context.

Contamination Considered

The assessment can address whether the examinee may know the information from disclosure, media, witnesses or investigative contact.

Defensible Purpose and Design

The proposed use, item construction, recording method and interpretation can be justified within the scope of the instruction.

A CIT is not an automatic substitute for a conventional comparison-question examination. In some cases another methodology may be more suitable; in others, no polygraph examination should be conducted.

Instructions Considered

Types of Japan-Related Instruction CFN May Consider

The categories below describe matters that may be reviewed. They do not imply that every proposed examination will be accepted.

Forensic and Legal Instructions

Defined allegations, disputed factual issues and evidential questions involving solicitors, legal representatives or other professional instructing parties.

Services for Legal Professionals

Corporate and Investigative Matters

Internal investigations involving misconduct allegations, theft, fraud, information compromise or another clearly defined factual dispute.

Corporate Investigation Context

Private Specific-Issue Examinations

Appropriate private instructions concerning a clearly defined factual event that can be examined ethically, voluntarily and methodologically.

Therapeutic or Disclosure-Related Work

Therapeutically supported disclosure or maintenance work where clinically appropriate and consistent with CFN’s suitability safeguards.

Therapeutic Polygraph Overview

Concealed Information Test Assessment

Specialist assessment where sufficiently protected case information, suitable alternatives and a defensible recognition-based design may be available.

Explore CIT Methodology

International Case Review

How a Japan Instruction Works

The process is consultation-led. No examination or Tokyo appointment is confirmed until the proposed instruction has been reviewed.

Step 1

Provide a Case Summary

The client outlines the issue, intended purpose, preferred location and relevant timescale.
Step 2

Assess Suitability and Feasibility

CFN considers methodology, documentation, location, interpreter requirements, safeguarding and logistical issues.
Step 3

Define the Professional Work

The required work and deliverables are defined, after which an individual fee is quoted.
Step 4

Confirm Location and Date

If accepted, the venue, date, attendance and other examination arrangements are confirmed.
Step 5

Conduct the Agreed Methodology

The examination proceeds using the methodology appropriate to the accepted instruction.
Step 6

Communicate Within Scope

Findings are communicated as agreed. Any written report is prepared after analysis and necessary quality review.

Read the appointment process

Examination Location and Language

The feasibility and arrangements for any examination in Japan are confirmed individually following case review.

Tokyo and Other Locations

Tokyo is normally the most practical location for Japan-based instructions, although other locations may be considered depending upon the requirements of the case.

Where an examination proceeds, a suitable private professional environment is arranged as part of the case planning process. CFN does not represent this service as a permanent Tokyo office.

English and Language Assistance

Examinations are normally conducted in English. Where language assistance may be required, interpreter suitability and examination methodology must be considered in advance.

An interpreter cannot simply be added to every format, and automated translation is not an adequate substitute for professional question formulation.

Case-Specific Quotation

Fees for Japan Instructions

Fees for examinations in Japan are quoted individually following an initial case review.

Professional Work First

The professional standard remains constant. The scope of professional work does not.

International instructions can vary considerably in the preparation, logistical arrangements and professional resources required. The quoted fee may therefore reflect case review, document assessment, question formulation, examination time, venue arrangements, travel, interpreting requirements, reporting and professional follow-up where relevant.

No Fixed Japan Fee

CFN does not apply an arbitrary standard fee and then determine the work that can be undertaken within it. The requirements of the instruction are assessed first, after which a fee proportionate to the professional work required is quoted.

No arbitrary fee tiers are published for Japan. The general CFN fees guide explains the Centre’s case-specific philosophy; it does not set a Japan examination fee.

Discuss Your Case and Fees

Defined Deliverables

Reporting

Results are communicated in accordance with the agreed scope of instruction. The form and intended recipient of any communication are established during case planning.

Where a written report forms part of that scope, it is prepared following analysis and any necessary quality review. A written report is not automatically included in every instruction, and its nature will reflect the purpose and professional requirements of the case.

Professional Boundaries

Suitability and Professional Safeguards

CFN does not automatically accept every proposed examination. Declining an unsuitable instruction is part of responsible professional practice.

An examination may be declined where:

The issue cannot be formulated appropriately or relevant information cannot be adequately defined.
The examinee is unsuitable, or coercion or safeguarding concerns exist.
A proposed CIT lacks sufficiently protected information or suitable alternatives.
The requested methodology, purpose or interpretation would not be professionally defensible.

Confidential Consultation

Discuss a Japan-Based Instruction

If you are considering a polygraph examination in Japan, provide a confidential summary of the issue, the intended purpose of the examination and the preferred location. CFN will review the matter before confirming whether an examination is appropriate and what arrangements would be required.

Request a Confidential Case Review