Integrity testing that helps South African employers and families uncover the truth

Integrity testing is not about suspicion alone - it is about stopping dishonesty before it spreads into bigger losses. Lionel Strong Lie Detection uses modern Voice Stress Analysis equipment to assess truthfulness in personal, workplace, and investigative situations with a clear, professional process.

Integrity testing at Lionel Strong Lie Detection is built for moments when trust is too important to leave unresolved. Instead of relying on outdated polygraph methods, Lionel Strong uses Voice Stress Analysis equipment to help assess honesty in a way that is direct, repeatable, and suited to real-world South African situations. This service is especially useful for employers, partners, and decision-makers who need clarity before a problem grows into a financial, legal, or personal setback. Because Lionel Strong is a former SAPS Lieutenant Colonel with deep investigative experience, the process is handled with the seriousness and discretion these matters demand.


What you get

VSA-Based Testing — We use Voice Stress Analysis equipment to assess responses with a modern method that supports fast, practical truth verification.
Investigative Leadership — Lionel Strong's background in SAPS investigations means the testing is shaped by real security and deception-detection experience.
Preventative Value — Integrity testing can be used before losses occur, helping you address warning signs while the issue is still manageable.
South African Context — The service is designed for the realities of local workplaces, relationships, and disputes where trust has real consequences.


How it works

1. You share the situation, the people involved, and the type of integrity concern so the test can be structured around the specific issue.
2. Lionel Strong prepares the relevant questions and sets up the VSA equipment to capture responses in a controlled, focused session.
3. The test is conducted and the results are reviewed for indicators that help distinguish honest answers from deceptive ones.
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Frequently asked questions

Q: What is integrity testing used for?
A: Integrity testing is used to assess honesty in situations where trust has been questioned or where prevention is better than reaction. It is commonly used for workplace concerns, relationship disputes, and internal investigations.
Q: How accurate is Voice Stress Analysis for integrity testing?
A: Lionel Strong states that the VSA method used is, on average, 97% accurate when applied correctly. It is also useful because inconclusive outcomes can often be repeated for a clearer result.
Q: Is integrity testing only for criminal investigations?
A: No, it is also valuable in business and personal matters where honesty needs to be checked before further damage is done. The website specifically positions it as a proactive tool, not just a reactive one.
Q: Why choose Lionel Strong Lie Detection for integrity testing?

Integrity Testing | Lionel Strong Lie Detection Integrity testing is not about suspicion alone - it is about stopping dishonesty before it spreads into bigger losses. Lionel Strong Lie Detection uses modern Voice Stress Analysis equipment to assess truthfulness in personal, workplace, and investigative situations with a clear, professional process. Led by former SAPS Lieutenant Colonel Lionel Strong, every test is informed by 17 years of security incident investigations, secu