Professional Truth Verification

Accuracy and Integrity You Can Trust.

Francois Celliers SAMDIA provides expert polygraph and voice stress testing for employers, legal teams, and private clients. Secure, confidential, and highly accurate results.

Professional lie detection and polygraph equipment
Professional consultant during a confidential interview

About Francois Celliers

When the Truth Matters, Get Clarity.

Uncertainty can create stress, conflict and unnecessary risk.

Francois is an associate member of the South African Bio-Feedback and Voice Polygraph Association (SAPAVSA), the controlling body for the polygraph industry which requires members to follow a code of conduct. The examiner adheres to the stringent ethical codes governing the polygraph profession.

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Certified expertise in polygraph examinations and advanced voice stress analysis.

02

Absolute confidentiality and adherence to the highest ethical and legal standards.

Core Services

Comprehensive Screening & Analysis.

Pre-Employment Screening
Corporate

Pre-Employment Screening

Ensure trust from day one. Truth verification, detect hidden risks, and protect your company culture with thorough voice stress screening.

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Incident Investigations
Investigative

Incident Investigations

Resolve workplace theft, fraud, and disputes swiftly. Our targeted polygraph exams identify deception and direct internal investigations.

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Voice Stress Analysis
Analysis

Voice Stress Analysis

Advanced verbal deception detection, complete with comprehensive confidential written reports.

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Why Choose Us

Professionalism at every stage of the process.

Objective Results

Data-driven analysis utilizing state-of-the-art polygraph and voice stress technology.

Strict Privacy

All exams and consultations are conducted under the utmost confidentiality.

Timely Reporting

Receive detailed, easy-to-understand written reports quickly to inform your decisions.

Ethical Standards

We strictly adhere to industry guidelines, ensuring fairness and respect for all examinees.

Confidential professional services and reporting

Confidential Inquiry

Contact SAMDIA today.

Contact us to discuss your specific polygraph or voice stress testing requirements. Our team will respond promptly to arrange a secure assessment.