Specialising in truth verification through polygraph examinations

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Our Values

Honesty and integrity are fundamental to the polygraph industry, serving as the bedrock of trust and credibility in every investigation we do here at WePolygraph.


We ensure that findings are presented truthfully, without bias or manipulation, and adhere to the highest ethical standards, even under pressure. In an industry where accuracy and impartiality can determine justice, these values are at the core of everything we do. These values drive us to approach every case with transparency and objectivity, ensuring that evidence is handled meticulously, conclusions are drawn responsibly, and trust in the investigative process is consistently upheld.

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Our Story

Based in Cape Town, WePolygraph was established to support business owners with comprehensive investigative services.

We specialise in truth verification through polygraph testing, voice stress detection, criminal record clearances, and private investigations.

With over 60 years of combined expertise in the security industry, we recognise the growing importance of integrity within the South African private sector. Our goal is to provide a reliable truth verification  platform that upholds and ensures the integrity of your workforce. 

Our Services
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Polygraph testing

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Voice stress detection

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Criminal record clearances

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Private investigations

Meet the WePolygraph Team

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Steyn Zeeman


Steyn Zeeman, Director at WePolygraph, brings 27 years of experience in the security industry and holds qualifications as both a Polygraph Examiner and Voice Stress Detection Examiner. His expertise extends to related fields, including investigations, risk assessments, client service, HR and IR management, as well as operational management.
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Oscar Petersen


Oscar Petersen, Director at WePolygraph with 29 years of experience in offshore security and operational security within the retail sector. He holds a tertiary qualification in Security Risk Management from UNISA and brings extensive expertise in investigations, human resources, and operational management.
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Our Clients

We collaborate with numerous clients across a range of industries, with their identities kept confidential. Below are just a few examples of the industries we serve.
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 Hospitality Industry

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 Financial Industry

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Security Industry

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Agricultural Industry

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Production/Manufacturing Industry

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Transport Industry

Our Truth Verification Process

We take great pride in the thorough process we follow to ensure accurate results.

01.

Pre-Test Interview

We begin by explaining the process and gathering information about the scenario from the subject’s perspective.

02.

Establishing Trust

We build rapport and facilitate honest communication with the subject.

03.

Reading the Subject

We observe and assess the individual to gain deeper insights.

04.

Truth Verification Test

The core of our process, where we validate the subject’s truthfulness.

05.

Report & Feedback

Finally, we provide a comprehensive report and feedback to the client.